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Absolutely mad inventions

New York, Dover Publications [1970]
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Format: Print
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American bridge patents : the first century (1790-1890)

by 
Morgantown : West Virginia University Press, 2005
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American photographic patents 1840-1880 : the daguerreotype & wet plate era

Nevada City, Calif. : Carl Mautz Pub., 2002
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Chemicals by enzymatic and microbial processes : recent advances

Park Ridge, N.J. : Noyes Data Corp., 1980
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Daniel Drawbaugh; the Edison of the Cumberland Valley

Philadelphia, University of Pennsylvania Press [1960]
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Development and use of patent classification systems

Washington, D.C., For sale by the Superintendent of Documents, U.S. Govt. Print. Off., 1966
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Edible gums and related substances

Park Ridge, N.J., Noyes Data Corp., 1973
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The Franklin journal, and American mechanics' magazine

by 
Philadelphia : Judah Dobson, 1826-1828
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Friction materials : recent advances

Park Ridge, N.J. : Noyes Data Corp., 1978
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The Growth of industrial art

by 
Washington : Gov't. Print. Office, 1892
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Historical first patents : the first United States patent for many everyday things

Metuchen, N.J. : Scarecrow Press, 1994
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How to invent and protect your invention

Hoboken, N.J. : Wiley, c2012
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How to make patent drawings : a patent it yourself companion

Berkeley : Nolo, 2007
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How to make patent drawings yourself

Berkeley, CA : Nolo Press, c1999
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