Inventing and patenting sourcebook > Editions
by Richard C. Levy First published December 31st 1990
Published
by Gale Cengage
Hardcover, 0 pages
Published
by Gale Cengage
1st, First Edition, Hardcover, 0 pages
Published January 1st 1990
by Gale Research
1st, First Edition, Hardcover, 922 pages



