Last edited by Kidal
Sunday, July 19, 2020 | History

2 edition of International patent classification 1989. found in the catalog.

International patent classification 1989.

International patent classification 1989.

survey of classes and summary of main groups.

  • 14 Want to read
  • 22 Currently reading

Published by Carl Heymanns Verlag, World Intellectual Property Organization in München .
Written in English


Edition Notes

Previous ed. 1984.

ContributionsWorld Intellectual Property Organization.
The Physical Object
Pagination301 p. ;
Number of Pages301
ID Numbers
Open LibraryOL21829654M
ISBN 103452214168


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