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1956-1960 (1 gen 1956 anni – 1 gen 1960 anni)

Descrizione:

The effieciency of solar cells was improved by Hoffman Electronics, from 8%-14%

Aggiunto al nastro di tempo:

econ

12 nov 2018

0

0

467

Data:

1 gen 1956 anni

1 gen 1960 anni

~ 4 years

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