Absolutely mad inventions.
By: Compiled from the records of the United States Patent Office by A. E. Brown and H. A. Jeffcott, Jr.
Contributors: Jeffcott, H. A. joint comp.
Publisher: Dover Publications
Published: 1970
Place of publication: New York
Language: eng
Number of pages: 125
Subjects: Patents -- United States.
Notes: "Unabridged and unaltered republication of the work originally published ... in 1932 under the title Beware of imitations."