2 edition of International patent classification 1989. found in the catalog.
International patent classification 1989.
Previous ed. 1984.
|Contributions||World Intellectual Property Organization.|
|The Physical Object|
|Pagination||301 p. ;|
|Number of Pages||301|
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Reference books in the social sciences and humanities
International Patent Classification: Guide, Survey of Classes and Summary of Main Groups [World Intellectual Property Organization] on *FREE* shipping on qualifying offers.
Intellectual property is traditionally divided into two branches, “industrial property” and “copyright.” The Convention Establishing the World Intellectual Property Organization.
International Patent Classification: Section D, Textiles, Paper [World Intellectual Property Organization] on *FREE* shipping on qualifying offers. Rock Mass Classification is the process of placing a rock mass into groups or classes on defined relationships (Bieniawski, ), and assigning a unique description (or number) to it.
Search the world's most comprehensive index of full-text books. My library. Patents by International Patent Classification (IPC) (61,) Section A - Human Necessities (10,) A01 - Agriculture; Forestry; Animal husbandry; Hunting.