FR758086A -
Pneumatic control device for movable electrical contacts of switching tables for the selective switching on of lamps on lamp panels
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Pneumatic control device for movable electrical contacts of switching tables for the selective switching on of lamps on lamp panels
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G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
G09G3/004—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes to give the appearance of moving signs
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Computer Hardware Design
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General Physics & Mathematics
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Theoretical Computer Science
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FR758086D1933-04-241933-07-06
Pneumatic control device for movable electrical contacts of switching tables for the selective switching on of lamps on lamp panels
ExpiredFR758086A
(en)