Index to the U.S. patent classification.

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Bibliographic Details
Imprint:	[Washington, District of Columbia] : U.S. Dept. of Commerce, Patent and Trademark Office, [1977-] [Getzville, New York] : William S. Hein & Company, [2017-]
Language:	English
Series:	HeinOnline intellectual property law collection Intellectual property law collection.
Subject:	Patents -- United States -- Classification -- Indexes -- Periodicals. Electronic journals. Indexes. Periodicals.
Format:	E-Resource U.S. Federal Government Document Journal
URL for this record:	http://pi.lib.uchicago.edu/1001/cat/bib/11418709

Hidden Bibliographic Details
Varying Form of Title:	Title varies: Index to the U.S. patent classification system 1990- Index to the United States patent classification Index to the US patent classification Index to classification
Other authors / contributors:	United States. Patent and Trademark Office, issuing body.
Frequency:	Updated annually
Date / volume:	Coverage begins with December 1977.
Notes:	Description based on PDF title page, viewed March 7, 2017.
Other form:	Print version: Index to the U.S. patent classification 0161-9470
Govt.docs classification:	C 21.12/2:

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