[OFFICIAL.) INDEX OF INVENTIONS Letters Patent of the United States were Granted In the Week ending May 18 1875 AND EACH BEARING THAT DATE. SCHEDULE OF PATENT FEES. 20 $10 $20 30 $10 $10 $15 530 CANADIAN PATENTS. STEVENS' MITRE BOX NEW ENGINES AT A SACRIFICE. STEEL STAMPS. Trow's May 1st 1876 Model Steam Engines WORCESTER FREE INSTITUTE. Wood Working M'achinery. Todd & Rafferty Maclaine co. IPPVACEINIT C OLD ROLLED SHAFTING., scientific american, 1875-06-19
[OFFICIAL.) INDEX OF INVENTIONS Letters Patent of the United States were Granted In the Week ending May 18 1875 AND EACH BEARING THAT DATE. SCHEDULE OF PATENT FEES. 20 $10 $20 30 $10 $10 $15 530 CANADIAN PATENTS. STEVENS' MITRE BOX NEW ENGINES AT A SACRIFICE. STEEL STAMPS. Trow's May 1st 1876 Model Steam Engines WORCESTER FREE INSTITUTE. Wood Working M'achinery. Todd & Rafferty Maclaine co. IPPVACEINIT C OLD ROLLED SHAFTING., scientific american, 1875-06-19
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