机读格式显示(MARC)
- 000 00673nam2 2200241 4500
- 100 __ |a 19990504d1991 akmy0chiy1021 ea
- 200 1_ |a 专利文献基本知识问答 |f 中国专利局文献馆编
- 210 __ |a 北京 |c 专利文献出版社 |d 1991.3
- 801 _0 |a CN |b XITC |c 19970901
- 905 __ |a XATU |d G255.53/4
- 995 __ |a 261060 |b 180613-15 |d G255.53 |e 4 |f G255.53/4
- 999 __ |Z acqcatachi |z 19990716155534 |G acqcatachi |g 1999071615554