TIMING DEVICE WITH OPTIONAL SIGNAL
United States Patent 3484769
US Patent References:
Circuitry for automatic appliances
- - 3320442
Switch and alarm clock
- - 2721441
Time switch
- - 3078358
Clock operated electric switch and alarm buzzer control device
- - 3100961
Timing and alarm mechanism
- - 3192700
Circuitry for automatic appliances
- - 3320442
Switch and alarm clock
- - 2721441
Time switch
- - 3078358
Clock operated electric switch and alarm buzzer control device
- - 3100961
Timing and alarm mechanism
- - 3192700
Inventors:
Ehner, William J.
Publication Date:
12/16/1969
View Patent Images:
Export Citation:
Assignee:
GEN ELECTRIC
Primary Class:
Other Classes:
340/309.400, 968/815, 340/309.300, 200/38R
International Classes:
G04F3/06; G04F3/00; G08B1/00; H01H43/10; H01H7/08