Patent secrecy order from 1949, for a patent that was later declassified in 1957: https://docs.google.com/viewer?url=patentimages.storage.googleapis.com/pdfs/US2799553.pdf …pic.twitter.com/4dTytOdG5z
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Patent secrecy order from 1949, for a patent that was later declassified in 1957: https://docs.google.com/viewer?url=patentimages.storage.googleapis.com/pdfs/US2799553.pdf …pic.twitter.com/4dTytOdG5z
