The Mechanix illustrated guide to how to patent and market your own invention
By: Marvin Grosswirth.
Publisher: McKay; David McKay Company, Inc; Brand: David McKay Company, Inc
Published: 1978
Place of publication: New York
Language: eng
Number of pages: 178
Subjects: Patents.; Inventions.
Other titles: How to patent and market your own invention.
Notes: Includes index.