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Scientific American, Vol. 42, No. 26 (June 1880) (1880)
leaf 3
Nashville, Tenn. The object of this inven- A correspondent, writing from near Leadville, Col., TBANSVEBSE SECTION. tion is to provide a drill that will cut a perfect channel in under date of June 1st, says they have just had a fall of the rock, and at the same time dress both faces of the said… … HYDRAULIC ELEVATOR FOR CANAL BOATS-CONSTRUCTED IN THE WEAVER AT AUDERT0N, ENGLAND. © 1880 SCIENTIFIC AMERICAN, INCPatents · Improved · Manufacture · Patented · Novel · Iron · Scientific American · Bleaching · Send stamp · Trade catalogs · Ordinary bleaching · Price indicator · Electric light · Sewing machine · Cast Iron · Luminous image · Post office
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