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Scientific American, Vol. 92, No. 1 (January 1905) (1905)

leaf 15

An illustration from Scientific American, Vol. 92, No. 1 (January 1905), 1905, leaf 15
TAPER TUBS eUKSUfc.. 50 YearsExperience … Trak.de Marks, Designs,Copyrights, Etc. Anyone sending a sketch and description mayquickly ascertain our opinion free whether aninvention is probably patentable. Communica-tions strictly confidential. Handbook on Patentssent free. Oldest agency for securing patents. Patents taKen through Munn &…

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