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All Patents in class 266
Patents 31 - 43 of 43
First set of recordsPrevious set of recordsLast set of records
NumberDatePatenteeTitleType
2,129,463Sep. 06, 1938E.P. Bullard, IIIStation Type Treatment Machinemetalworking machines
2,157,948May 09, 1939H.H. BeenyHardening of Metal Surfacesmetalworking machines
2,220,002Oct. 29, 1940H.M. Binns, W.A. Maddox, M. RollmanHeat Treatingheat treating machines
2,245,273Jun. 10, 1941A.L. HartleyMethod of Flame Hardening Lathe Bedsmetal lathes
2,264,752Dec. 02, 1941W.F. GroeneFlame Hardening Machinemetalworking machines
2,361,995Nov. 07, 1944F.W. CurtisMethod of Making Metal Cutting Toolsmilling machine cutters
2,378,001Jun. 12, 1945F.E. DrummondFlame Hardening Torchtorches
2,378,890Jun. 26, 1945M.A. Crosby, H.H. Brown, P.A. AbeSurface hardening metal areas of limited size
2,412,333Dec. 10, 1946A.L. HartleyFlame Hardening Apparatusmetalworking machines
2,462,072Feb. 22, 1949F.N. DarmaraProcess of Inductively Heating Pliersmaking pliers
2,895,386Jul. 21, 1959T.C. MannProfiling machinerouting machines
4,065,249Dec. 27, 1977J.W. NelsonHeater for billets
4,125,365Nov. 14, 1978J.W. NelsonRoll through billet heater
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