Inventor's manual, how to work a patent to make it pay;
a guide to inventors, in perfecting their inventions, taking out their patents, and disposing of them,
by an experienced and successful inventor.
|Main Author:||Hopkins, George M. 1842-1902.|
New York, N. W. Henley & Co., 1901.
A new rev. and enl. ed., including the new 1900 census of the United States, by counties containing a population of over ten thousand.
Blank pages for notes (116-119)
iv, 5-119 p.
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