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Annual report of the Commissioner of Patents for the year .. (1914)
United States. Patent Office · Washington : G.P.O · leaf 7
mMAH ANNUAL REPORT OF THE Commissioner of Pateni FOR THE YEAH 1914 … WASHINGTON GOVERNMENT PRINTING OPPIOE loieUnited States. Patent Office · Patents
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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