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All Patents in class 72/272
Patents 1 - 3 of 3
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NumberDatePatenteeTitleType
638,808Dec. 12, 1899E.F. HolingerVertical Piercing-Press.
2,167,845Aug. 01, 1939W. KlockeExtrusion process and apparatusextruding machines and dies
2,415,696Feb. 11, 1947W. KlockeExtrusion apparatusextruding machines and dies
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