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Annual report of the Commissioner of Patents for the year .. (1915)

United States. Patent Office · Washington : G.P.O · leaf 5

An illustration from Annual report of the Commissioner of Patents for the year .., 1915, leaf 5 — 1 MM AH ANNUAL REPORT OF THE Commissioner of Patents FOR THE YEAR 1915 … WASHINGTON GOVERNMENT PRINTING OFFICE 1916

United States. Patent Office · Patents

Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.

More pictures from Annual report of the Commissioner of Patents for the year ..

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