Classification of subjects of invention of U.S. Patent Office arranged by divisions with classes and subclasses in each; revised to July 1, 1908.

Bibliographic Details
Corporate Author:	United States. Patent Office
Format:	Government Document eBook
Language:	English
Published:	Washington, D.C. : U.S. Government Printing Office, 1908.
Subjects:	Patents > United States > Classification. Electronic books.
Online Access:	Connect to the full text of this electronic document

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