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Scientific American, Vol. 38, No. 11 (March 1878) (1878)

leaf 4

An illustration from Scientific American, Vol. 38, No. 11 (March 1878), 1878, leaf 4
wood, which had been patented or described in scientific works since 1700. Dur- mirrors in case, B, are parallel to those in A, the image of 15 tons, was constructed for shearing, punching, and the sun appears perfectly white, but the light can easily be straightening steel fish plates of any… … DOUBLE SHEARING, PUNCHING AND STRAIGHTENING MACHINE. © 1878 SCIENTIFIC AMERICAN, INC

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