Title:
Interlock system
United States Patent 3327169
US Patent References:
Electrical apparatus
- - 1976609

Circuit controller
- - 2068581

Catenary lighting apparatus
- - 3033978

Interlock system
- - 3246178


Inventors:
Comstock Jr., Eldred H.
Martin, Raymond G.
Publication Date:
06/20/1967
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Assignee:
Comstock Jr., Eldred H.
Martin, Raymond G.
Primary Class:
361/615
Other Classes:
307/328, 70/265
International Classes:
H01H33/52; H01H33/02