000 00532nam a22001817c 4500
001 12609
003 OSt
005 20190814091217.0
007 t|
008 190702s1975 xxu||||| |||| 00| 0 d
110 1 _aUnited States Patent and Trademark Office (USPTO) <Washington>
245 0 0 _aGuide for patents-draftmen :
_bselected rules of practice relating to patent drawings
250 _aRev. 1975
264 1 _aWashington:
_bUS.Gov.Print.Off.,
_c1975
300 _a19 S.
650 _aPatentzeichnung
_93560
650 _aUSA
_94716
999 _c7491
_d7491