Index to classification.

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Bibliographic Details
Corporate Author: United States. Patent Office.
Format: Book
Language:English
Published: [Washington, U.S. Govt. Print. Off., 1960-
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110 1 |a United States.  |b Patent Office. 
245 1 0 |a Index to classification. 
260 |a [Washington,  |b U.S. Govt. Print. Off.,  |c 1960- 
300 |a 1 v. (loose-leaf)  |c 27 cm. 
650 0 |a Patents  |z United States  |v Indexes. 
650 0 |a Patents  |x Classification. 
988 |a 20020608 
906 |0 OCLC