Title:
Circuit controller
United States Patent 2747056


Inventors:
Jefferson, Glen V.
Application Number:
US34979953A
Publication Date:
05/22/1956
Filing Date:
04/20/1953
Assignee:
WESTINGHOUSE AIR BRAKE CO
Primary Class:
Other Classes:
200/6BA, 200/250
International Classes:
H01H21/24
View Patent Images:
US Patent References:
2614830Spring1952-10-21
2575994Control switch1951-11-20
2307373Rotary electric switch1943-01-05
2190525Electric switch1940-02-13
2190520Circuit controller1940-02-13
1977887Circuit controlling device1934-10-23