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6 ottob 1942 anni - Patente de la Electrofotograía

Descrizione:

Chester Carlson recibe la patente No. 2,297,691 por la electrofotografía posteriormente llamada xerografía

Aggiunto al nastro di tempo:

Xerox

ByDiego Medina
31 gen 2018

Data:

6 ottob 1942 anni
Adesso
~ 81 years ago

Immagini:

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