| All Patents of Type: flame hardening machines |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 2,138,811 | Dec. 06, 1938 | P.A. Abe | Surface Hardening Lathe Bed | flame hardening machines |
| 2,154,947 | Apr. 18, 1939 | A.H. Lloyd, H.H. Beeny | Hardening Metal Surfaces | flame hardening machines |
| 2,157,948 | May 09, 1939 | H.H. Beeny | Hardening of Metal Surfaces | flame hardening machines |
| 2,220,002 | Oct. 29, 1940 | H.M. Binns, W.A. Maddox, M. Rollman | Heat Treating | flame hardening machines |
| 2,247,494 | Jul. 01, 1941 | A.L. Hartley | Flame hardening apparatus | flame hardening machines |
| 2,257,605 | Sep. 30, 1941 | A.L. Hartley | Adjustable flame hardening torch | flame hardening machines |
| 2,461,734 | Feb. 15, 1949 | A.L. Hartley, A.H. Davis | Flame hardening apparatus | flame hardening machines |
| 2,500,989 | Mar. 21, 1950 | W.D. Whalen, A.H. Davis, A.L. Hartley | Metallurgical apparatus | flame hardening machines |
| 2,621,717 | Dec. 16, 1952 | M. Garvin, D.M. Strauchen | Annular Torch Head for Flame Hardening Machines | flame hardening machines |
| 2,665,126 | Jan. 05, 1954 | E.G. Roehm | Crankshaft Pin Hardening Machine | flame hardening machines |
| 2,956,793 | Oct. 18, 1960 | R.S. Easley | Rotary Fluid Cooled Flame Head for Flame Hardening Machine | flame hardening machines |
