The RCA Selectron -- US Patent 2,635,201 Sandwich Selectron
Jan A. Rajchman, Radio Corporation of America
Applied: 30 September, 1949
Granted: 14 April, 1953

US Patent 2,635,201 Images (OCR'd) 400kB

US Patent 2,635,201 Text (OCR'd) 94 kB
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