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All Patents in class 72/390.6
Patents 1 - 7 of 7
First set of recordsLast set of records
NumberDatePatenteeTitleType
152,695Jun. 30, 1874C. ScofieldMachines for Straightening Tubing Shafting &c.metal straightening machines
319,603Jun. 09, 1885W.J. MuncasterMetal bending and straightening machinemetal straightening machines
485,735Nov. 08, 1892H.F. BuskingShaft Straightenermetal straightening machines
525,003Aug. 28, 1894E. Hodgson, W. CopleyStraightening Machine for Shaftingmetal straightening machines
1,323,279Dec. 02, 1919F.O. HoaglandBarrel Straightening Mechanismmetal straightening machines
1,938,761Dec. 12, 1933H. FritschiMachine Toolmetal straightening machines
2,214,881Sep. 17, 1940H.A. DohertyCombination Straightening Block and Test Rollmetal straightening machines
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