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All Patents in class 318/376
Patents 1 - 3 of 3
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NumberDatePatenteeTitleType
273,208Feb. 27, 1883S.S. WheelerElectric Elevatrorelevators and lifts
318,668May 26, 1885F.J. SpragueMethod of Operating Electric Railway Trainselectric railroads
324,621Aug. 18, 1885S.S. WheelerElectric Elevatorelevators and lifts
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