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Scientific American, Vol. 13, No. 36 (1858) (1858)

leaf 7

An illustration from Scientific American, Vol. 13, No. 36 (1858), 1858, leaf 7
the desired information for the benefit further particulars. A patent was obtained on tion it will be seen that the frame is perfectly of all our readers :— balanced, and that the force exerted on the it Feb. 16, 1858. This instrument consists of a long narrow INVENTORS, MANUFACTURERS, box of very… … each year’esubscription, to pre-pay postage. strong iron wires, tuned to the notes of the Reports of American Patents granted are also pub- gamut, from the top of a tower sixty feet high, lished every week, including Official Copies of all the Our engraving is a top view of a roller that others not…

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