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Scientific American, Vol. 66, No. 19 (May 1892) (1892)
leaf 3
at work on the trains embedded is also safe from corrosion and protected which run through the St. Clair Tunnel, the discom- against fire, enduring with the concrete, which hardens fort from the accumulation of coal gas being so great as the years pass. that the men, although paid high wages,… … tion. FBESTON'S SEPARABLE LEG AND FOOT STOCKING, The Cowlea Company 600-700 in allo^ © 1892 SCIENTIFIC AMERICAN, INC.Iron · Patents · Rubber · Munn · Oil · Scientific American · Wire · Oil acts · Hot water · Horse power · Carrier pigeons · Gun deck · Soft iron · Cast Iron · Field magnet · Waste rubber
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