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asked 3 years ago
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answered 7 months ago
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answered 4 months ago
In 1965, Russell joined the Pacific Northwest National Laboratory of Battelle Memorial Institute in Richland. There, in 1965, Russell invented the overall concept of optical digital recording and playback [1]. The earliest patents by Russell, US 3,501,586, and 3,795,902 were filed in 1966, and 1969. Respectively[2][3]. He built prototypes, and the first was operating in 1973. In 1973, 1974, 1975 his prototype was viewed by about 100 companies, including Philips and Sony engineers, and more
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