Title:
Theater lighting control system
United States Patent 2920240
US Patent References:
Lighting control circuits
- - 2463463
Semiconductor circuit controlling device
- - 2655608
Electronic switching
- - 2728857
Lighting control circuits
- - 2798984
Electrical control apparatus
- - 2864985
Lighting control circuits
- - 2463463
Semiconductor circuit controlling device
- - 2655608
Electronic switching
- - 2728857
Lighting control circuits
- - 2798984
Electrical control apparatus
- - 2864985
Inventors:
Sutherland, Macklem F.
Publication Date:
01/05/1960
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Export Citation:
Assignee:
KLIEGL BROS UNIVERSAL ELECTRIC
Primary Class:
Other Classes:
315/294, 315/250, 327/461, 315/200A, 361/204, 315/312, 315/205
International Classes:
G05F1/455; H02M7/155; H05B39/08; H05B41/392; G05F1/10; H02M7/12; H05B39/00; H05B41/39