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4956632 |
Multiple purpose electromechanical vehicle signal device
A moving signal light for both stationary or traveling vehicles and equipment. The unit can be mounted selectively either inside or outside the vehicle and is controlled either automatically in...
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3636506 |
CONTROL UNIT FOR PROJECTION-TYPE POSITION INDICATOR
A control unit for use with a projection-type digital display device blanks the display prior to any change in the presentation. A timer delays advancement of the indicia until the expiration of a...
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