The Technical World Magazine, Volume 23Technical World Company, 1915 |
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Acetylene Alaska American auto automobile Belgium Bldg boat building built carry catalog cattalo cent Chicago coal COPYRIGHT UNDERWOOD cost coupon course CYCLOPEDIA David Starr Jordan Dept device direct current dollars electric engine equipment experience farm feet fire five gasoline German give guns horsepower hundred inches invention La Guayra land Lathes light loganberry LYON & HEALY machine manufacture mechanism ment method miles month motor operation Patent Pearl Harbor picture plant pounds practical Prize profit radium railroad railway river road saving sell ship speed station steam steel Street supply Technical World Magazine thousand tion tires train tube U. S. Patent Office UNDERWOOD & UNDERWOOD United vacuum tube Washington wheel wire wireless Write York