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Scientific American, Vol. 69, No. 9 (August 1893) (1893)

leaf 3

An illustration from Scientific American, Vol. 69, No. 9 (August 1893), 1893, leaf 3
s the die silver, chloride of gold, cyanide of potassium, metal in contact with the top edge of the saw tooth, the oxides, and other chemicals for pharmaceutical and in- passages are very direct, it is designed that,.by the in- die rolling off thereon and finally engaging and roll- dustrial uses.… … © 1893 SCIENTIFIC AMERICAN, INC.

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