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Patents for A. Widder
Patents 1 - 3 of 3
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PictureNumberDatePatenteeTitle
492,126Feb. 21, 1893C.W. WeissIgniter for Gas Engines
543,163Jul. 23, 1895C.W. WeissExplosive Engine
543,165Jul. 23, 1895C.W. WeissExplosive Engine
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