Inventor's manual, how to work a patent to make it pay; a guide for inventors, in perfecting their inventions, taking out their patents, and disposing of them, and cautions as to pitfalls for the unwary (1918)

Hopkins, George M. (George Milton), 1842-1902, Hopkins, Albert A. (Albert Allis), 1869-1939, ed · New York, The Norman W. Henley publishing company · leaf 152

An illustration from Inventor's manual, how to work a patent to make it pay; a guide for inventors, in perfecting their inventions, taking out their patents, and disposing of them, and cautions as to pitfalls for the unwary, 1918, leaf 152 — C. L. CRAIG. FOLDING CHAIR. APPLICATION FlltO APR. 13, 1916. 1,218,611. Patented Mar. 6,1917. … INVENTOR ThpM .AZ ATTORNEYS 52,158. DESIGN. £, H. DERRY. WASTE BASKET.APPLICATION FILED JAN. II, 1918. Patented July 9,1918.

Patents · Inventions

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Inventor's manual, how to work a patent to make it pay; a guide for inventors, in perfecting their inventions, taking out their patents, and disposing of them, and cautions as to pitfalls for the unwary (1918)

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