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United States Patent 3437972
US Patent References:
High voltage protective device
- - 1848152
Electrical protective device
- - 2530228
Controlling and indicating device
- - 2581308
Arc triggered release mechanism
- - 2809256
Illuminated push button circuit breaker
- - 3238334
Inventors:
Urani, Angelo
Publication Date:
04/08/1969
View Patent Images:
Download PDF 3437972
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Assignee:
MC GRAW EDISON CO
Primary Class:
337/221
Other Classes:
337/238, 337/190
International Classes:
H01H85/041
;
H01H85/30
;
H01H85/00
; H01H85/46; H01H85/36; H01H85/30
US Patent References:
3319027
Encapsulated fuse structure for polyphase circuits
0590750
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