机读格式显示(MARC)
- 000 00873nam2a2200289 4500
- 008 930101c19759999|||wr p 0 a1eng d
- 099 __ |a CAL 122000932646
- 210 0_ |a Off. Gaz. U.S. Patent Trademark Off., Patents
- 222 _0 |a Official Gazette of the United States Patent and Trademark Office.Patents
- 245 10 |a Official Gazette of the United States Patent and Trademark Office. |p Patents / |c U.S. Department of Commerce. Patent and Trademark Office
- 260 __ |a Washington,D.C. |b Authority of Congress |c 1975-
- 362 0_ |a V.931,no.1(Feb. 1975)-