机读格式显示(MARC)

• 000 00747nas a2200241 4500

• 001 0000317784

• 003 CAL

• 005 20180507135100.0

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• 099 __ |a CALB121999031636

• 245 00 |a Engineering patents index. alerting abstracts bulletin, |b Q6A : |p Engineering elements

• 246 00 |a Engineering elements

• 260 __ |a London, UKN : |b Derwent information, |c c1996-

• 300 __ |a 1 v. |c 30 cm.

• 310 __ |a Weekly(52/y)

• 362 0_ |a (1996)-

• 500 __ |a Description ased on : no.9701 (1997)

• 780 00 |t General & mechanical patents index. alerting abstracts bulletin, Q5-Q7 : mechnaical engineering

• 920 __ |a 211070 |z 2

• 998 __ |a SJT