Photoelectric self-correcting timing device for turning on and off electric devices
United States Patent 3231747
US Patent References:
System for controlling lighting circuits
- - 2446450

Timing apparatus
- - 2531138

Electric switch
- - 2644047

Time switch
- - 2855476

Photoelectric off-peak control switch
- - 3033969


Inventors:
Katsumi, Takeda
Akiteru, Kaminoto
Publication Date:
01/25/1966
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Assignee:
MITSUBISHI ELECTRIC CORP
Primary Class:
250/215
Other Classes:
307/117, 219/502, 200/38DC, 968/626
International Classes:
G04C23/36; G04C23/00