COMMUNICATIONS RECEIVED. INDEX OF INVENTIONS FOE WHICH Letters Patent of the United States were Granted in the Week Ending. May 30 1876 AND EACH BEARING THAT DATE. SCHEDULE OF PATENT FEES. Inside Page each insertion - 75 cents a linr., scientific american, 1876-07-01
COMMUNICATIONS RECEIVED. INDEX OF INVENTIONS FOE WHICH Letters Patent of the United States were Granted in the Week Ending. May 30 1876 AND EACH BEARING THAT DATE. SCHEDULE OF PATENT FEES. Inside Page each insertion - 75 cents a linr., scientific american, 1876-07-01
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