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All Patents in class 266/148
Patents 1 - 2 of 2
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NumberDatePatenteeTitleType
7,448Jun. 18, 1850J.F. WoodCombination of a Guide-Tooth with an Inclined Scraperroad scrapers
529,476Nov. 20, 1894B. BrazelleProcess of and apparatus for smelting ores
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