COMMUNICATIONS RECEIVED. [OFFICIAL. j INDEX OF INVENTIONS Letters Patent of the United states were Granted In the Week ending July 27 1875 AND EACH BEARING THAT DATE. (Those marked (r) are reissued patents.) SCHEDULE OF PATENT FEES. On issuing eacn or.ginal Patent 820 CANADIAN PATENTS. LIST OP PATENTS GRANTED IN CANADA July 24 to 31 1875. Nivtrtiottututs. BLAKE'S PATENT Stone and Ore Breaker STENCIL PiliAt' IT: N 'I` C OLD ROLLED SHAFTING. The HOADLEY, scientific american, 1875-08-28
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