| ^ #0053 (197004): CANON: Pocketronic ...First 'handheld' battery-powered printing electronic calc. |
^ #0053 (197004): SANYO: ICC82D (version-1) ...First Nixie tubes + Rechargeable batteries in a portable |
^ #0054 (197004): SANYO: ICC82D (version-1) ...First Nixie tubes + Rechargeable batteries in a portable |
^ #0054 (19701012): SMITH CORONA MARCHANT (SCM): 1 ...Unique portable Nixie calculator |
^ #0055 (19701012): SMITH CORONA MARCHANT (SCM): 1 ...Unique portable Nixie calculator |
^ #0055 (19701118): MOSTEK_parts(E): MK6010 (CalcChip) ...First Calculator-on-a-chip |
^ #0056 (19701118): MOSTEK_parts(E): MK6010 (CalcChip) ...First Calculator-on-a-chip |
^ #0056 (1971): BROTHER: 310 ...No division, too complex for the chipset |
^ #0057 (1971): BROTHER: 310 ...No division, too complex for the chipset |
^ #0057 (1971): BUSICOM: 141PF ...World's first micro processor (INTEL) based calculator |