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1 jan 1938 ano - Electrophotographic - 1938 Chester Carlson

Descrição:

 

A light exposure is made upon a charged plate and a negatively charged powder creating the first dry printing method which didn't involve a solvent or ink. This method is commonly referred to as Xerox.

Adicionado na linha do tempo:

Data:

1 jan 1938 ano
Agora
~ 87 years ago