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Scientific American, Vol. 26, No. 14 (March 1872) (1872)

leaf 7

An illustration from Scientific American, Vol. 26, No. 14 (March 1872), 1872, leaf 7
requirements of July. The judges at the American Institute Fair reported , Patented March 12,1872, through the Scientific American a good door fastener more fully than anything of the kind that, in their opinion, the machine possessed the highest de- Patent Agency, by B. H. Melendy, whom address,… … the casement. It consists of a body, A, Figs. 1 and 2, of ment. strong sheet metal, which carries a strong adjusting screw, 4. The silver medal, or its value, and the sum of 560 francs B. The screw plays in a nut, C, shown in dotted outlines in to the author of a profound essay on industrial…

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