Inventing for Fun and Profit

Inventing for Fun and Profit

A guide to the procedures involved in inventing and in patenting, promoting, and marketing inventions describes the author's experiences with four of his numerous creations Published By Outlet on 1978

Book Specifications
Format:
Paperback
Pages:
96 pages
Language:
English
ISBN10:
051753312X
ISBN13:
9780517533123
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