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5 ore 43 min, 2 gen 1920 anni - Tri ergon group(germany) and Lee de forest(US) made optical sound: took care of synchonization

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Art History Final

ByBethany Walker

8 nov 2017

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Data:

5 ore 43 min, 2 gen 1920 anni

Adesso

~ 105 years ago

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