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The official gazette of the United States Patent Office, Nov. 29, 1938.

Bibliographic Details
Corporate Author: United States. Patent Office
Format: Government Document eBook
Language:English
Published: [Washington] : [s.n.], 1938.
Subjects:
United States. > Patent Office.
Patents.
Online Access:Electronic resource (PDF)
Description
Physical Description:1 online resource (470 pages), digital, PDF file