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AIzaSyCYaC8UkdPkQKLFUmpasLV5eC3M802CrcA
October 30, 2019
583176
177245
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1956-1960 (jan 1, 1956 – jan 1, 1960)

Description:

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

Added to timeline:

11 months ago
0
0
69
econ

Date:

jan 1, 1956
jan 1, 1960
~ 4 years
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