Title:
AUTOMATIC INTERNAL TRAM CONTROL
United States Patent 3456982

Inventors:
Reilly, Donald C.
Publication Date:
07/22/1969
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Assignee:
WESTINGHOUSE AIR BRAKE CO
Primary Class:
299/11
Other Classes:
299/18, 198/832, 405/259.100, 180/317
International Classes:
E21C35/00; E21D20/00; E21C45/00; E21C41/04
Foreign References:
CA746339A




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