Document (#10937)

Author

Schweikhardt, F.

Title

Some thoughts on hybrid systems especially for patent documentation

Source

World patent information. 11(1989) no.3, S.125-133

Year

1989

Abstract

Traces the development of hybrid systems, including their adoption into the International Patent Classification. Explains their basic principles and reviews the offices and commercial organisations which utilise them.

Field

Patentinformation

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4. Nishikawa, M.: Usefulness of hybrid systems in computerised searches (1990) 0.30

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