1.
Secrets of Successful Inventing : From Concept to Commerce
by Tolchin, Edith G.
ISBN: 9780757004070
List Price: $19.95
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Secrets of Successful Women Inventors! : How 19 Women Took Their Dreams and Turned Them into...
by Tolchin, Edith G.
ISBN: 9780757005244
List Price: $19.95