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2.
The Relation of the Patent Laws to American Agriculture, Arts, and Industries, Being the Annual Address Before the New York Society of Practical Engineering, Delivered September 7, 1875
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3.
The Patent Office and the Problem of Reform26 % NR
Publisher: Nabu Press
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₹1,323
₹979
Binding:
Paperback
Release:
17 Sep 2011
Language:
English
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