COMMUNICATIONS RECEIVED. INDEX OF INVENTIONS April 20 1875 AND EACH BEARING THAT DATE. TRADE MARKS REGISTERED. SCHEDULE OF PATENT FEES. 820 820 830 810 810 815 830 CANADIAN PATENTS. Back Page 81.00 a line. Inside Page 75 cents a line. FOR SALE Model Engines., scientific american, 1875-05-22
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COMMUNICATIONS RECEIVED, INDEX, INVENTIONS April 20 1875, EACH BEARING THAT DATE, TRADE MARKS REGISTERED, SCHEDULE, PATENT FEES, 820 820 830 810 810 815 830 CANADIAN PATENTS, Back Page, 81.00, line, Inside Page 75 cents, line, FOR SALE Model Engines, scientific american, 1875-05-22, science, scientific, sciences, mind, health, tech, sustainability, publication, lab, sciam, sa, scientist, research, american, experiment, education, discovery, technology, analysis, magazine, u.s., insights, developments, weekly, broadsheet, inventor, innovation, inventions, patented, industrial revolution, emerging, trends, monthly magazine, united states, engravings, curious works, paper, discover, Scientific Paper, Weekly Journal, Practical Information, Art, Science, Mechanics, Chemistry, Manufactures, research, education, scientist, innovation, 19th century, vintage, america, Rufus M. Porter, 1845, journal, academic, newspaper illustrations, retro style, old-fashioned, media illustrations, victorian style, news, newspaperheadline, 19th century style, illustration, journalism
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