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All Patents in class 72/169
Patents 16 - 20 of 20
Number	Date	Patentee	Title	Type
2,215,111	Sep. 17, 1940	W.C. Tucker	Bending machine
2,495,068	Jan. 17, 1950	W.E. Lundgren	Conterbalance for Slip Roll Formers	sheet metal forming rolls
2,640,525	Jun. 02, 1953	R.G. Tourneau	Bending roll	metal bending machines
2,838,089	Jun. 10, 1958	R.H. Weisner	Roll forming machine with work releasing mechanism
3,145,759	Aug. 25, 1964	H.A. Doster, C. Zelnick, A.D. Swartz	Apparatus for making power springs

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