Manual of classification.
| Corporate Author: | |
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| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington, D.C. :
U.S. Dept. of Commerce, Patent and Trademark Office, Documentation Organizations :
[1991-]
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| Subjects: |
| 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. |
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| Physical Description: | 5 volumes (loose-leaf) ; 28 cm. |
| ISBN: | 0160164559 : |