000 00454nam a22001817c 4500
001 20485
003 OSt
005 20190814091624.0
007 t|
008 190702s1940 xxu||||| |||| 00| 0 d
245 0 0 _aThe story of the american patent system 1790-1940
264 1 _aWashington:
_bGov. Print. Off.,
_c1940
300 _a29 S.
650 _aUSA
_94716
650 _aPatentwesen
_93556
650 _aPatentamt
_93359
650 _aGeschichte
_91629
999 _c11802
_d11802