Victor brand manual calculator was an early form of an adding machine that used a paper tape printout. Circa 1920 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Freeman, Tony |
Bildgröße: | 5075 px × 3390 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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