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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 683
669 I. AGRICULTURE. 18^h73 ill . .^Illllllli i ^^^JjvOU^ivE^^ i ^ X' … -^W ^•^ r" U m nnH,,^r>w^ ( c'O-" 1 ^ "( )United States. Patent Office · Patents · Agriculture
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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