机读格式显示(MARC)
- 000 00849nas a2200229 a 4500
- 008 040409c19909999enkwr p 0 0eng d
- 245 00 |a Electrical patents index-alerting abstracts bulletins (country order). |n Section W, |p Communications. |k periodical
- 246 13 |a Electrical patents index, country bulletin.Section W, Communications
- 260 __ |a London, |b Derwent Publications Ltd., |c 1990-
- 362 0_ |a No. 9001 (1990)-
- 780 00 |t World patents abstracts journal. W Communications
- 785 00 |t Electrical patents (EPI). Alerting abstracts bulletins (Country order). Section W, Communications
- 910 __ |a A100000NLC |l NLC09 |n 001002961 |z 2