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Report of the Commissioner of Patents for the year .. (1849)

United States. Patent Office · Washington : Office of Printers to House of Reps. · leaf 41

An illustration from Report of the Commissioner of Patents for the year .., 1849, leaf 41
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United States. Patent Office · Patents · Agriculture

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

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