INDEX OF INVENTIONS For which Letters Patent of the United States were issued for the Week Ending March 9 1909 AND EACH BEARING THAT DATE Engine and Foot Lathes MACHINE SHOP OUTFITS TOOLS AND SUPPLIES. BEST MATERIALS. BEST C WORKMANSHIP. ATALOGUE FREE THE 'BARNES' W. F. & AO. BARNES CO. The FRENCH SPARK PLUG that Protects Your Coil and Magnet Price $2.50 each. Circular on request. MONTGOMERY & CO. 105 Fulton Street New York City Safety Razors FREE How to Construct An Independent Interrupter The ONLY Correspondence School formulated on Modern Cost Systems; Factory and Commer cial Office Systems; Manufacturing Methods and Systems; Shop Organization and Man agement; Shop Construction and Equipment; Pattern Shop and Foundry Systems; Mechani cal Drawing; Mechanical Engineering etc. Modern Systems Correspondence School Executive Offices 6 Beacon St. Boston OSCAR E. PERRIG M. E. Educational Director NORMAN W. HENLEY Secretary and Treasurer Legal. Notices 60 YEARS'' EXPERIENCE PATENTS TRADE Mavens DESIGNS COPYRIGHTS &C. Branch Office. 25 E Walthiltellitrk 'Star' Lathes Economical Production For Either 401 1 or PowerHECIICSACCOUNTANTS 'MANUFACTURER S THIS, scientific american, -1909-03-20
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INDEX, INVENTIONS, Letters Patent, United States, issued, Week Ending March 9 1909, EACH BEARING THAT DATE Engine, Foot Lathes MACHINE SHOP OUTFITS TOOLS, SUPPLIES, BEST MATERIALS, BEST C WORKMANSHIP, ATALOGUE FREE, 'BARNES' W, F, & AO, BARNES CO, FRENCH SPARK PLUG, Protects Your Coil, Magnet Price $2.50, Circular, request, MONTGOMERY & CO, 105 Fulton Street New York City Safety Razors FREE, Construct, Independent Interrupter, ONLY Correspondence School formulated, Modern Cost Systems, Factory, Commer cial Office Systems, Manufacturing Methods, Systems, Shop Organization, Man agement, Shop Construction, Equipment, Pattern Shop, Foundry Systems, Mechani cal Drawing, Mechanical Engineering etc, Modern Systems Correspondence School Executive Offices 6 Beacon , Boston OSCAR E, PERRIG M, E, Educational Director NORMAN W, HENLEY Secretary, Treasurer Legal, Notices 60 YEARS'' EXPERIENCE PATENTS TRADE Mavens DESIGNS COPYR, Branch Office, 25 E Walthiltellitrk 'Star' Lathes Economical Production, 401 1, PowerHECIICSACCOUNTANTS 'MANUFACTURER S THIS, scientific american, -1909-03-20, 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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