Title:
SURFACE HARDENING OF RAILS
United States Patent 3497403
Inventors:
Rutherford, David A.
Mcwilliams, Robert J.
Publication Date:
02/24/1970
Export Citation:
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Assignee:
ABEX CORP
Primary Class:
148/581
Other Classes:
148/642
International Classes:
C21D9/04; C21D9/04; (IPC1-7): C21D1/06; C21D1/78
View Patent Images:
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US Patent References:
3275481Method of flame hardening welded structures
3266956Thermal hardening of rails
2882191Method and apparatus for flame hardening of rails and the like
1008674N/A




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