TO INVENTORS. INDEX OF INVENTIONS For which Letters Patent or the United States were Granted July 25 1893 AND EACH BEARING THAT DATE. Bridle bitE. T. Bartruff nace. Metallurgical furnace. Furnace G. R. Scatee 602R8 enstein 602.0 Lamp electric arc P. J. Barrett 502166 Lamp gas C. Kalkkuhl 602123, scientific american, 1893-08-05
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