Patent Practices of the Government Printing Office :  Preliminary Report of the Subcommittee of Patents, Trademarks and Copyrights of the Committee on the Judiciary ; U.S Senate, 86 Congress, 2. Session persuant to S. res. 240 

 - V, 10 S. 
<br/><br/> 13.178 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Patentwesen<br/>USA