To build a better mousetrap
Subtitle: a compendium of 400 animal related inventions in the words and pictures of inventors from their U.S. patents
By: compiled and edited by J.E. Cavitt
Publisher: KismetAP
Published: 2001
Place of publication: Sequim, WA
Language: eng
Number of pages: 206
Subjects: Pet supplies; Patents; Livestock; Equipment and supplies; Inventions