| Alfabetical Brand/Type List Criteria: RPN (Reverse Polish Notation)
 | AKA (Also Known As) | Label on Back | Product Number | Year of introduction | Classification | 
| (Docu_Books): Algorithms For RPN Calculators |   |   |   | 1978 | Documentation / Book / RPN (Reverse Polish Notation) | 
| (Docu_Books): Anwendung programmierbarer Taschenrechner 01 |   |   |   |   | Documentation / Book / RPN (Reverse Polish Notation) | 
| (Docu_Books): Anwendung programmierbarer Taschenrechner 02 | Allgemeine Elektrotechnik, Nachrichtentechnik, Impulstechnik,
für UPN-Rechner |   |   | 1980 | Documentation / Book / RPN (Reverse Polish Notation) | 
| (Docu_Books): Anwendung programmierbarer Taschenrechner 06 |   |   |   | 1980 | Documentation / Book / RPN (Reverse Polish Notation) | 
| (Docu_Books): Aufgaben lösen und Spiele mit dem Taschenrechner |   |   |   | 1977 | Documentation / Book / RPN (Reverse Polish Notation) | 
| (Docu_Books): Enter: Reverse Polish Notation Made Easy | ENTER |   |   |   | Documentation / Book / RPN (Reverse Polish Notation) | 
| (Docu_Books): Everything you've always wanted to know about RPN |   |   |   | 1976 | Documentation / Book / RPN (Reverse Polish Notation) | 
| (Docu_Books): LRN tout un programme |   |   |   | 1980 | Documentation / Book / RPN (Reverse Polish Notation) | 
| (Unknown manufacturer): T600 | T 600 |   | T600 | ~1975 | Pocket / RPN (Reverse Polish Notation) | 
| ACCURON: (Unknown model 1) |   |   |   | 1975 | Pocket / RPN (Reverse Polish Notation) | 
| ACCURON: 600 (version-3) |   |   | 600 | 1976 | Pocket / RPN (Reverse Polish Notation) | 
| ADDMASTER: 2002 |  | ELECTRONIC CALCULATOR, MODEL 2002, 208J | 2002 | 1972 | Desktop with Display / Time / RPN (Reverse Polish Notation) | 
| APF: 55 | MARK 55 | mark 55, ADVANCED SCIENTIFIC CALCULATOR, Model No. MARK 55 | 55 | ~1975 | Pocket / RPN (Reverse Polish Notation) | 
| BINATONE: 02-4481 |   |   | 024481 (02-4481) | ~1976 | Pocket / RPN (Reverse Polish Notation) | 
| CALFAX: 616 |   |   | 616 | ~1976 | Pocket / RPN (Reverse Polish Notation) | 
| COMMODORE: RPN4921 |   |   | 20146204 (201462-04) | 1978 | Pocket / RPN (Reverse Polish Notation) | 
| COMPUMATIC: 8A (version-1) |   |   |   | ~1972 | Pocket / RPN (Reverse Polish Notation) | 
| COMPUMATIC: 8A (version-2) |   |   | 8A | 1972 | Pocket / RPN (Reverse Polish Notation) | 
| CORVUS: 500 |   | Model 500, ELECTRONIC CALCULATOR | 500 | 1975 | Pocket / RPN (Reverse Polish Notation) | 
| DENNISON: 1011LSI |   |   | 1011LSI (1011 LSI) | ~1971 | Desktop with Display / RPN (Reverse Polish Notation) | 
| ELECTRO SCIENTIFIC INDUSTRIES (ESI): 4100 | calcumeter 4100 |   | 4100 | ~1979 | Desktop with Display / Engineering (electrical, electronics) / RPN (Reverse Polish Notation) | 
| ELEKTRONIKA: B3-19M (version-1) |   |   | B319M (B3-19M) | 1977 | Pocket / RPN (Reverse Polish Notation) | 
| ELEKTRONIKA: B3-19M (version-2) |   |   | B319M (B3-19M) | 1977 | Pocket / RPN (Reverse Polish Notation) | 
| ELEKTRONIKA: B3-21 (version-1) |   |   | B321 (B3-21) | 1979 | Pocket / RPN (Reverse Polish Notation) | 
| ELEKTRONIKA: B3-21 (version-2) |   |   | B321 (B3-21) | 1979 | Pocket / RPN (Reverse Polish Notation) | 
| ELEKTRONIKA: MC1104 |   |   | MC1104 | ~1991 | Desktop with Display / Time / RPN (Reverse Polish Notation) | 
| EMERSON ELECTRONICS: E12 |   | Model 12E, ELECTRONIC CALCULATOR | E12 | ~1976 | Pocket / RPN (Reverse Polish Notation) | 
| FRIDEN: 1152 | 1152 programmable printing calculator, SINGER | MODEL 1152 | 1152 | 1969 | Desktop with Printer / RPN (Reverse Polish Notation) / Memory (delay line) | 
| FRIDEN: 1160 | 1160 CALCULATOR | ELECTRONIC CALCULATOR, MODEL NO. 1160 | 1160 | 1969 | Desktop with Display / RPN (Reverse Polish Notation) | 
| FRIDEN: 1162 | 1162 electronic calculator, SINGER | ELECTRONIC CALCULATOR, MODEL NO. 1162 | 1162 | 1969 | Desktop with Display / RPN (Reverse Polish Notation) / Memory (delay line) | 
| FRIDEN: 1166 | 1166 electronic calculator, SINGER | ELECTRONIC CALCULATOR | 1166 | 1969 | Desktop with Display / RPN (Reverse Polish Notation) / Memory (delay line) | 
| FRIDEN: 130 | 130 ELECTRONIC CALCULATOR, Friden | ELECTRONIC CALCULATOR, MODEL 130 | 130 | jun-1963 | Desktop with Display / RPN (Reverse Polish Notation) / Memory (delay line) | 
| GARRETT COMTRONICS CORPORATION: 2002 |  | ELECTRONIC CALCULATOR, MODEL NO. 2002 | 2002 | 1972 | Desktop with Display / Time / RPN (Reverse Polish Notation) | 
| HP_calcs: 21 (version-1) |   |   | 21 | 1975 | Pocket / RPN (Reverse Polish Notation) | 
| HP_calcs: 21 (version-2) | YOKOGAWA-HEWLETT-PACKARD 21 |   | 21 (YOKOGAWA) | 1975 | Pocket / RPN (Reverse Polish Notation) | 
| HP_calcs: 32S |   |   | 32S | 1987 | Pocket / RPN (Reverse Polish Notation) | 
| HP_calcs: 35 (version-1) |   |   | 35 | 04-jan-1972 | Pocket / RPN (Reverse Polish Notation) | 
| HP_calcs: 42S | RPN SCIENTIFIC |   | 42S | 1987 | Pocket / RPN (Reverse Polish Notation) | 
| HP_calcs: 45 (version-1) |   |   | 45 | 1973 | Pocket / RPN (Reverse Polish Notation) | 
| HP_calcs: 45 (version-2) | YOKOGAWA-HEWLETT-PACKARD 45 |   | 45 (YOKOGAWA) |   | Pocket / RPN (Reverse Polish Notation) | 
| HP_calcs: 55 (version-1) |   |   | 55 | 1975 | Pocket / RPN (Reverse Polish Notation) | 
| HP_calcs: 55 (version-2) | YOKOGAWA-HEWLETT-PACKARD 55 |   | 55 (YOKOGAWA) | ~1975 | Pocket / RPN (Reverse Polish Notation) | 
| HP_calcs: 65 (version-1) |   |   | 65 | 17-jan-1974 | Pocket / RPN (Reverse Polish Notation) | 
| HP_calcs: 65 (version-2) |   |   | 65 | 1974 | Pocket / RPN (Reverse Polish Notation) | 
| HP_calcs: 65 (version-3) | YOKOGAWA-HEWLETT-PACKARD 65 |   | 65 (YOKOGAWA) | ~1975 | Pocket / RPN (Reverse Polish Notation) | 
| HP_docu: 5952-6585 (Broch.) Enter Contro = | Enter Contro =, Una discussionie pratica, problema per problema, dei sistemi logici usati negli attuali, calcolatori scientifici tascabali | 5952 - 6585 - Italian - 01.75 - 10K - W | 59526585 (5952-6585) | jan-1975 | Documentation / Brochure / RPN (Reverse Polish Notation) | 
| ICE-FELIX: CE30 |   |   | CE30 | ~1969 | Desktop with Display / RPN (Reverse Polish Notation) / Memory (delay line) | 
| ICE-FELIX: CE33 |   |   | CE33 | ~1970 | Desktop with Display / RPN (Reverse Polish Notation) / Memory (delay line) | 
| MBO: L0832 |  | Elektronenrechner, Modell: MBO L-0832, Bestell Nr.: 0558 | 0558 | 1976 | Pocket / RPN (Reverse Polish Notation) | 
| NATIONAL SEMICONDUCTOR: 4615 |   |   | 4615 | 1975 | Pocket / RPN (Reverse Polish Notation) | 
| NATIONAL SEMICONDUCTOR: 4640 (version-1) |   |   | 4640 | 1976 | Pocket / RPN (Reverse Polish Notation) | 
| NATIONAL SEMICONDUCTOR: 4640 (version-2) |   |   | 4640 | ~1976 | Pocket / RPN (Reverse Polish Notation) | 
| NATIONAL SEMICONDUCTOR: 600 (version-1) |  | model 600 | 600 | ~1975 | Pocket / RPN (Reverse Polish Notation) | 
| NATIONAL SEMICONDUCTOR: 600 (version-2) |   |   | 600 | ~1975 | Pocket / RPN (Reverse Polish Notation) | 
| NATIONAL SEMICONDUCTOR: 600 (version-3) |   | 600 CALCULATOR | 600 | ~1975 | Pocket / RPN (Reverse Polish Notation) | 
| NATIONAL SEMICONDUCTOR: 600 (version-4) |   | MODEL 600 | 600 | ~1975 | Pocket / RPN (Reverse Polish Notation) | 
| NATIONAL SEMICONDUCTOR: 600 (version-5) | WhizKid | 600 CALCULATOR | 600 | ~1975 | Pocket / RPN (Reverse Polish Notation) | 
| NATIONAL SEMICONDUCTOR: 600 (version-6) |   |   | 600 | ~1975 | Pocket / RPN (Reverse Polish Notation) | 
| NOVEDAS ELECTRONICAS (NESA): Regla de Calculo |   | mod RCE | REGLA DE CALCULO |   | Pocket / RPN (Reverse Polish Notation) | 
| NOVUS: 4510 (version-2) | Mathematician |   | 4510 | ~1975 | Pocket / RPN (Reverse Polish Notation) | 
| NOVUS: 4515 (version-1) | Mathematician PR |   | 4515 | 1975 | Pocket / RPN (Reverse Polish Notation) | 
| NOVUS: 4515 (version-2) | Mathematician PR |   | 4515 | ~1975 | Pocket / RPN (Reverse Polish Notation) | 
| NOVUS: 4520 | Scientist |   | 4520 | ~1976 | Pocket / RPN (Reverse Polish Notation) | 
| NOVUS: 650 (version-1) | Mathbox |   | 650 | 1975 | Pocket / RPN (Reverse Polish Notation) | 
| NOVUS: 650 (version-2) |   |   | 650 | ~1975 | Pocket / RPN (Reverse Polish Notation) | 
| NOVUS: 650 (version-3) |   |   | 650 | 1975 | Pocket / RPN (Reverse Polish Notation) | 
| NOVUS: 650 (version-4) | Mathbox |   | 650 | 1975 | Pocket / RPN (Reverse Polish Notation) | 
| OMRON: 12SR | Slide Rule | ELECTRONIC CALCULATOR, MODEL 12SR | 12SR | ~04-1976 | Pocket / RPN (Reverse Polish Notation) | 
| PRINZTRONIC: Program | PROGRAMMABLE SCIENTIFIC CALCULATOR |   | Program | 1975 | Pocket / RPN (Reverse Polish Notation) | 
| PRIVILEG: PR55NC | PR 55 NC | Elektronik Rechner, Bestell-Nummer 700.231 4 | 7002314 (700.231 4) | ~1975 | Pocket / RPN (Reverse Polish Notation) | 
| PRIVILEG: SR54NC | SR 54 NC | Elektronikrechner | 7002215 (700.221 5) | 1975 | Pocket / Converter / RPN (Reverse Polish Notation) | 
| QUALITRON: 1421 | PROGRAMMABLE SCIENTIFIC |   | 1421 | 1975 | Pocket / RPN (Reverse Polish Notation) | 
| RCA: 3C3030 |  | ELECTRONIC CALCULATOR, MODEL NO 3C3030 | 3C3030 | ~1973 | Desktop with Display / Time / RPN (Reverse Polish Notation) | 
| RFT: 600 (version-1) | konkret 600 | ELEKTRONISCHER TASCHENRECHNER | 600 | 1978 | Pocket / RPN (Reverse Polish Notation) | 
| SANTRON: 600PM |   | ART. NR.: 028/541 | 028541 (028/541) | 1975 | Pocket / RPN (Reverse Polish Notation) | 
| SANYO: CZ2901 |   | MODEL CZ-2901 | CZ2901 (CZ-2901) | 1977 | Pocket / Converter / RPN (Reverse Polish Notation) | 
| SINCLAIR: Scientific (version-1) |   |   | Scientific | aug-1974 | Pocket / RPN (Reverse Polish Notation) | 
| SINCLAIR: Scientific (version-2) |   |   | Scientific | 1974 | Pocket / Kit / RPN (Reverse Polish Notation) | 
| SINCLAIR: Scientific Programmable |   |   | Scientific Programmable | 1975 | Pocket / RPN (Reverse Polish Notation) | 
| SUMLOCK ANITA ELECTRONICS: Anita 1000 (version-1) |   |   | 1000 | 1969 | Desktop with Display / RPN (Reverse Polish Notation) | 
| SUMLOCK ANITA ELECTRONICS: Anita 1000LSI | ANITA, 1000 LSI |   | 1000LSI | 1971 | Desktop with Display / RPN (Reverse Polish Notation) | 
| SUMLOCK ANITA ELECTRONICS: Anita 1010 |   |   | 1010 | 1969 | Desktop with Display / RPN (Reverse Polish Notation) | 
| SUMLOCK ANITA ELECTRONICS: Anita 1011 | ANITA 1011 |   | 1011 | 1969 | Desktop with Display / RPN (Reverse Polish Notation) | 
| SUMLOCK ANITA ELECTRONICS: Anita 1011BLSI (version-1) |   |   | 1011BLSI | 1971 | Desktop with Display / RPN (Reverse Polish Notation) | 
| SUMLOCK ANITA ELECTRONICS: Anita 1011BLSI (version-2) |   |   | 1011BLSI | 1971 | Desktop with Display / RPN (Reverse Polish Notation) | 
| SUMLOCK ANITA ELECTRONICS: Anita 1011LSI | ANITA, 1011 LSI |   | 1011LSI (1011 LSI) | 1971 | Desktop with Display / RPN (Reverse Polish Notation) | 
| SUMLOCK ANITA ELECTRONICS: Anita 1011P |   |   | 1011P | 1971 | Desktop with Printer / RPN (Reverse Polish Notation) | 
| SUMLOCK ANITA ELECTRONICS: Anita 1020 |   |   | 1020 | 1970 | Desktop with Display / RPN (Reverse Polish Notation) | 
| SUMLOCK ANITA ELECTRONICS: Anita 1021 |   |   | 1021 | 1970 | Desktop with Display / RPN (Reverse Polish Notation) | 
| SUPER CAL: 616 |   |   | 616 | 1975 | Pocket / RPN (Reverse Polish Notation) | 
| TEXAS INSTRUMENTS_docu: 1014984-103 (Instr.) Pac: RPN Simulator | TI Programmable 58/59, RPN Simulator Using the power of your Solid State Software module
 |   | 1014984103 (1014984-103) | 1979 | Documentation / Instructions / RPN (Reverse Polish Notation) | 
| TEXAS INSTRUMENTS_pacs: *: RPN Simulator (58,58C,59) |   |   |   | ~1979 | Package / RPN (Reverse Polish Notation) | 
| TEXET: 0832 |   |   | 0832 | ~1976 | Pocket / RPN (Reverse Polish Notation) | 
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| 07-mar-2025:   (93 Items). |   |   |   |   |   | 
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