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All Patents in class 266/127
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,157,948May 09, 1939H.H. BeenyHardening of Metal Surfacesflame hardening machines
2,220,002Oct. 29, 1940H.M. Binns, W.A. Maddox, M. RollmanHeat Treatingflame hardening machines
2,346,923Apr. 18, 1944T.A. Waltz, A. KullmanApparatus for Flame Hardening Racks and the Likeheat treating machines
2,378,890Jun. 26, 1945M.A. Crosby, H.H. Brown, P.A. AbeSurface Hardening Metal Areas of Limited Sizemetal hardening
2,461,734Feb. 15, 1949A.L. Hartley, A.H. DavisFlame hardening apparatusflame hardening machines
2,956,793Oct. 18, 1960R.S. EasleyRotary Fluid Cooled Flame Head for Flame Hardening Machineflame hardening machines
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