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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 167
157 COMMISSIONER OP PATENTS. 42164 42167 R Q 1>^ S3SSS& ff^\|^ Z22ZZCZZZZ21 ;f -'-fy … 42168 42166 B , B -s^B~l ~r a TMJ 42169 m ELUnited States. Patent Office · Patents · Agriculture
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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