| All Patents in class 266/127 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 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 |
| 2,346,923 | Apr. 18, 1944 | T.A. Waltz, A. Kullman | Apparatus for Flame Hardening Racks and the Like | heat treating machines |
| 2,378,890 | Jun. 26, 1945 | M.A. Crosby, H.H. Brown, P.A. Abe | Surface Hardening Metal Areas of Limited Size | metal hardening |
| 2,461,734 | Feb. 15, 1949 | A.L. Hartley, A.H. Davis | Flame hardening apparatus | flame hardening machines |
| 2,956,793 | Oct. 18, 1960 | R.S. Easley | Rotary Fluid Cooled Flame Head for Flame Hardening Machine | flame hardening machines |
