Examiner handbook to the U.S. patent classification system.

Bibliographic Details
Corporate Author:	United States. Patent and Trademark Office
Format:	Government Document Book
Language:	English
Published:	[Washington, D.C.] : US Patent and Trademark Office, [1997]
Subjects:	Patents > United States > Classification > Handbooks, manuals, etc. Patent searching > United States > Handbooks, manuals, etc.
Online Access:	https://purl.fdlp.gov/GPO/LPS570

Available Online