| All Patents in class 266/87 |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 2,220,002 | Oct. 29, 1940 | W.A. Maddox, M. Rollman, H.M. Binns | Heat Treating | flame hardening machines |
| 2,523,883 | Sep. 26, 1950 | M. Garvin, D.M. Strauchen | Heat Treating Machine | heat treating machines |
| 2,555,517 | Jun. 05, 1951 | M. Garvin, D.M. Strauchen | Automatic Heat Treating Machine | heat treating machines |
| 2,665,126 | Jan. 05, 1954 | E.G. Roehm | Crankshaft Pin Hardening Machine | flame hardening machines |
| 4,125,365 | Nov. 14, 1978 | J.W. Nelson | Roll through billet heater | |
