Excavating
Patent
1995-06-06
1997-09-23
Beausoliel, Jr., Robert W.
Excavating
371 53, 364550, B61L 2700, G06F 1108
Patent
active
056713487
ABSTRACT:
A system and method for selectively dealing with failures in a railway signaling and control context such that only an output device or group of devices is turned off, rather than a whole system being shut down.
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patent: 4204249 (1980-05-01), Dye et al.
patent: 4611291 (1986-09-01), Hoelscher
patent: 4740972 (1988-04-01), Rutherford, Jr.
patent: 4747041 (1988-05-01), Engel et al.
patent: 4831521 (1989-05-01), Rutherford, Jr.
Beausoliel, Jr. Robert W.
General Railway Signal Corporation
Hua Ly V.
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