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Scientific American, Vol. 40, No. 12 (March 1879) (1879)

leaf 4

An illustration from Scientific American, Vol. 40, No. 12 (March 1879), 1879, leaf 4
cts. tacle having a spring acted follower, and containing the dous shocks to which the machine was subjected during the It is stated that this machine will extract the honej' from points or brads used in fastening the glass. A metallic contract test from the breaking of the steel specimens, which… … Some persons are more dependent on ex- tures, which cannot be described without ternal circ'jmstances and conditions tor TESTING MACHINE. DESIGNED BY T. OLSEN, an engraving. © 1879 SCIENTIFIC AMERICAN, INC.

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