SPECIAL orrm We will give thefirst person an-swering this ad-verti sem en t ineach town Of theUnited States anunusual opportun-ity to obtain THE AMERICAN $10 TYPEWRITER OR THE AMERICAN $40 TYPEWRITER For full particulars mention ScientificAmerican and promptly address The American Typewriter Co.,…
Patents · Device · Adapted · Motor · Automobile · Gas · Sewing machine · Scientific American · Nearest agent · Machine work · Compressed air · Temperature indicator · Typewriting machine · Nickel plate · American august · Gas engine
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