SURFACE HARDENING OF RAILS
United States Patent 3497403
US Patent References:
/1008674.html
- - 1008674
Method and apparatus for flame hardening of rails and the like
- - 2882191
Thermal hardening of rails
- - 3266956
Method of flame hardening welded structures
- - 3275481
/1008674.html
- - 1008674
Method and apparatus for flame hardening of rails and the like
- - 2882191
Thermal hardening of rails
- - 3266956
Method of flame hardening welded structures
- - 3275481
Inventors:
Rutherford, David A.
Mcwilliams, Robert J.
Mcwilliams, Robert J.
Publication Date:
02/24/1970
View Patent Images:
Export Citation:
Assignee:
ABEX CORP
Primary Class:
Other Classes:
148/642
International Classes:
C21D9/04; C21D1/06; C21D1/78