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Scientific American, Vol. 6, No. 25 (1862) (1862)

leaf 11

An illustration from Scientific American, Vol. 6, No. 25 (1862), 1862, leaf 11
operate in the manner and for the purpose set forth. 35,449.—T. S. Hudson, of East Cambridge, Mass., for Tm- ISSUED FROM THE UNITED STATES PATENT OFFICE (This invention consists in a simple device for varying the size of provement in Inkstands : the seed aperturesin the hopper, and indicating on a…

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