Introduction to Derwent World Patents Index on ... - STN International
Introduction to Derwent World Patents Index on ... - STN International
Introduction to Derwent World Patents Index on ... - STN International
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DWPI records have two levels<br />
AN 1999-265576<br />
PI<br />
EP913216 A1<br />
CA2251524 A1<br />
CN1219449 A<br />
...<br />
INVENTION<br />
value-added data<br />
MEMBER 1<br />
EP913216 A1<br />
MEMBER 2<br />
CA2251524 A1<br />
PUBLICATION<br />
original member data<br />
MEMBER 3<br />
CN1219449 A<br />
13