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ROYAL_docu: (Ad.) *: The keys to buying the right calculator (version-1)
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AKA: Royal Typewriter Company presents, The key to buying the right calculator,
Date of intro: ~1976,
Classification: / Documentation / Advertisement,
Related with: ROYAL: 12HC, ROYAL: 12HT, ROYAL: 80K, ROYAL: 90K (version-1), ROYAL: 90S (version-1), ROYAL: 91K (version-1), ROYAL: 91S (version-1), ROYAL: 92M, ROYAL: 94F, ROYAL: 99T (version-1),
Courtesy of: CALCUSEUM (Serge DEVIDTS),

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Created: 28-oct-2017, Manual-update: 28-oct-2017, Batch-update: 02-oct-2023             

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