410 COMMUNICATIONS RECEIVED. INDEX OF INVENTIONS Letters Patent of the United States were Granted in the Week ending November 24 1874 AND EACH BEARING THAT DATE. [DECEMBER 26 1874. SCHEDULE OF PATENT FEES. 910 925 $15 920 820 $30 810 830 D F a, scientific american, 1874-12-11
410 COMMUNICATIONS RECEIVED. INDEX OF INVENTIONS Letters Patent of the United States were Granted in the Week ending November 24 1874 AND EACH BEARING THAT DATE. [DECEMBER 26 1874. SCHEDULE OF PATENT FEES. 910 925 $15 920 820 $30 810 830 D F a, scientific american, 1874-12-11
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