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Index to classification of patents, to accompany Manual of classification of patents; revised to Jan. 1, 1924.

Bibliographic Details
Corporate Author:	United States. Department of the Interior
Format:	Government Document eBook
Language:	English
Published:	[Washington] : GPO, 1924.
Subjects:	Classification. Patents. Electronic books.
Online Access:	Connect to the full text of this electronic document

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