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All Patents in class 72/248
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
434,960Aug. 26, 1890E.E. StowTinsmith's Machinesheet metal forming rolls
627,558Jun. 27, 1899F.L. WhiteDrawing Die Mechanismdies for punch presses
661,017Oct. 30, 1900C. KuhlewindRolling Millrolling mills
1,162,536Nov. 30, 1915B.F. WinterhoffSheet-metal-tube-planishing machineroller seaming machines
1,774,155Aug. 26, 1930L.S. PlatouSheet Metal Working Machinesheet metal
1,822,697Sep. 08, 1931P.R. HahnemannSheet-metal working machinebeading machines
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