Patent Practices of the Department of Agriculture :
Patent Practices of the Department of Agriculture : Preliminary Report of the Subcommittee on Patents, Trademarks and Copyrights of the Committee on the Judiciary ; U.S. Senate, 87. Congress, 1. Session perusant to S. Res. 55
- VIII, 161 S.
USA
Patentwesen
USA
Patentwesen