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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 205
195 COMMISSIONER OF PATENTS 42433 42431 42434 I] 42435 s o CO OiUnited States. Patent Office · Patents · Agriculture
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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