General information concerning patents

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090 ‡aT223.J4 ‡bU54 1975
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110 2 0 ‡aUnited States Patent and Trademark Office ‡wcn
245 1 0 ‡aGeneral information concerning patents.
250 ‡aRevised Apr. 1975.
260 0 ‡a[Washington] : ‡bDept. of Commerce, Patent and Trademark Office : U.S. G.P.O., ‡c1975.
300 ‡aiii, 41 p. ; ‡c24 cm.
500 ‡aCover title.
538 ‡aMode of access: Internet.
650 0 ‡aPatents ‡zUnited States.
CID ‡a008869464
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DAT 2 ‡a2024-03-02T18:30:02Z
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