Celebration of the American Patent System :
Celebration of the American Patent System : 1836 - 1961 ; Part 1.2
125th Anniversary of the United States Patent Act of 1836
- V, 231 S.
13.469, 13.483/2
USA
Patentwesen
Festschrift
13.469, 13.483/2
USA
Patentwesen
Festschrift