Title:
Electric clock fire alarm
United States Patent 2552331
US Patent References:
/0471929.html
- - 0471929

/1011175.html
- - 1011175

/1198220.html
- - 1198220

Watch or clock thermostatic fire alarm
- - 1795507

Circuit breaker for fire alarms
- - 1849551


Inventors:
Lamb, Anthony H.
Publication Date:
05/08/1951
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Assignee:
Lamb, Anthony H.
Primary Class:
340/590
Other Classes:
340/691.100, 340/594, 368/12, 340/328
International Classes:
G08B17/06
US Patent References:
1955558Time alarm
2069622
2147718Fire detector and alarm
2318005Fire alarm gong apparatus
2367639Heat-responsive device
2411752Fire alarm contact device
2417254