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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 18
[^/^/^^[L[i[t^ \LIA\K AFTER DRAINEDUnited States. Patent Office · Patents · Agriculture
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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