Beware of imitations
Subtitle: compiled from the records of the United States Patent Office
By: by A.E. Brown and H.A. Jeffcott, Jr.
Contributors: Brown, A. E. 1897-; Jeffcott, H. A.
Publisher: Viking Press
Published: 1932
Place of publication: New York
Language: eng
Number of pages: 125
Subjects: Patents -- United States.