INDEX OF INVENTIONS For which Letters Patent of the United States were Issued for the Week Ending April 14 1908. AND EACH BEARING THAT DATE Keystone Well Drills KEYSTONE WELL WORKS Beaver Falls Pa. Self-Cleaning TIMER The Beckley-Ralston Co. 78 Michigan Av. Chicag CURTISS WORLD'S New Single and Double Cylin Diamond Medal Highest Award National Endurance run won on a Curtiss. Send for Catalogue H and Booklet 'Achievements.' CO. Hammondsport N. Y. G. H. CURTISS MFG. FOX MOTORS I til.:1l-4:-.' PI I Model Makers Engine and Foot Lathes MACHINE SHOP OUTFITS TOOLS AND SUPPLIES. BEST MATERIALS. BEST
INDEX OF INVENTIONS For which Letters Patent of the United States were Issued for the Week Ending April 14 1908. AND EACH BEARING THAT DATE Keystone Well Drills KEYSTONE WELL WORKS Beaver Falls Pa. Self-Cleaning TIMER The Beckley-Ralston Co. 78 Michigan Av. Chicag CURTISS WORLD'S New Single and Double Cylin Diamond Medal Highest Award National Endurance run won on a Curtiss. Send for Catalogue H and Booklet 'Achievements.' CO. Hammondsport N. Y. G. H. CURTISS MFG. FOX MOTORS I til.:1l-4:-.' PI I Model Makers Engine and Foot Lathes MACHINE SHOP OUTFITS TOOLS AND SUPPLIES. BEST MATERIALS. BEST WORKMANSHIP. CATALOGUE FREE SEBASTIAN LATHE CO 120 Culvert St. Cincinnati. O. PAST PRESENT AND FUTURE A popular account of Flying Machines Dirigible SPON & CHAMBERLAIN 123 S. A. Liberty Street New York SUPPLIES AND PARTS AT LOWEST PRICES Sent Free 32 Olive Street St. Louis Mo. This includes all parts so that anyone can make a strong durable machine that will climb steep bills. Send 4c. in 5 or Motor cycle catalog C. Motorcycle Equipment Co. Hammondsport N. Y. RACINE WOOD SHAPER GUARD BARCAINS IN AUTOMOBILES NEW AND SECOND-HAND. TIMES SQUARE AUTOMOBILE CO. BARNES' FOOT POWER MACHINERY WORK SHOPS DRILLING Machines Husby 884687 884461 Printing press web-feeding device P. F. Cox , scientific american, 1908-04-11
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