Relay temperature compensating means
United States Patent 2366992

Inventors:
Willing, Joseph E.
Little, Robert J.
Publication Date:
01/09/1945
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Assignee:
GEN RAILWAY SIGNAL CO
Primary Class:
320/153
Other Classes:
361/140, 320/160, 361/99, 320/DIG.024, 361/106, 320/DIG.022
International Classes:
H01H47/02; H02J7/04; H01H47/00