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Scientific American, Vol. 65, No. 22 (1891) (1891)
leaf 3
ags, eight of which, holding out very rapidly, have malleable iron wearing blocks three bushels each, can be carried on the machine. men working at intervals during theday are required, interposed at each articulation. These blocks not When these are filled, they are set off on to the curb- three… … soils, cess. © 1891 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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