Manual of classification.

Bibliographic Details
Corporate Author: United States. Patent Documentation Organizations
Format: Government Document Book
Language:English
Published: Washington, D.C. : U.S. Dept. of Commerce, Patent and Trademark Office, Documentation Organizations : [1991-]
Subjects:
Description
Item Description:"Basic manual, December 1990, including changes resulting from all classification orders through December 31, 1990."
Shipping list number: 91-222-P.
Accompanied by: Classification Orders Index.
Physical Description:5 volumes (loose-leaf) ; 28 cm.
ISBN:0160164559 :