United States Patent Law Sesquicentennial Celebration :
United States Patent Law Sesquicentennial Celebration : a record of the proceedings commorating the 150. anniversary of the signing of the 1. United States Patent Law ; 1790 - 1950
- VII, 72 S.
USA
Patentgesetz
Festschrift
Patentwesen
USA
Patentgesetz
Festschrift
Patentwesen