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Scientific American, Vol. 66, No. 14 (1892) (1892)
leaf 3
material....... ... wate tented hammered iron, case hardened Boiler material, homogeneous steel plates....54 and 9-16 in. thick are able to compete with the Edison-Thomson-Houston Guides, top, width - ....... tae poe earteit cath po: taste «6% in Throat sheet, thickness....... eiencs siedieie… … © 1892 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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