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110 1 _aUnited States Senate <Washington>
245 0 0 _aHearing before the Subcommittee on patents, trademarks and copyrights of the committee on the Judiciary :
_bAmerican Patent System ; 84. Congress, 1. session ; pursuant to S.res.92 ….
264 1 _aWashington:
_bU.S. Govern. Print. Off.,
_c1956
300 _aXLIX, 361 S.
650 _aPatentwesen
_93556
650 _aUSA
_94716
999 _c7748
_d7748