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Scientific American, Vol. 2, No. 20 (1847) (1847)

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An illustration from Scientific American, Vol. 2, No. 20 (1847), 1847, leaf 0
ANS ~ AAAS NO. 20. VHY NEW YORK LIST OF PATENTS … Their valves and pees 21, 1847. The thumb screw Invropucrion.—This lock is expected to For everything that pays! To James Rabbeth, of Mansfield, Conn. for moving ina fast collar and giving motion to Now cnlv heed improvement in Dicper pins. Patented Jan, - slide counterbelts G. hese counterbolts…

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