Official gazette of the United States Patent Office
Subtitle: Patents
Publisher: The Office
Published: 1971
Place of publication: Washington
Language: eng
Format: [microform]
Number of pages: 48
Subjects: Periodicals; Patents
Other titles: Patents
Notes: Title from cover.

Microfilm. Wooster, Ohio : Micro Photo Div., Bell & Howell. 49 microfilm reels ; 35 mm.