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Scientific American, Vol. 44, No. 10 (1881) (1881)
leaf 7
to center of the bar, D, supports an arbor having at one end a socket for receiving the twisted iron bar, E, and at the other comes rapid and easy, and the stuff may be sawed or slit at the top of the arm, J, and the lower end of the saw is se- end a center and a short finger or pin. A metal disk… … the saw. The tension of the For the purpose of upper spring may be © 1881 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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