Chemiluminescent Foldable Signal Device.
DEPARTMENT OF THE NAVY WASHINGTON D C
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The patent concerns a signal device combining a fluorescent or phosphorescent light tube and a novel base to be thrown or dropped from a vehicle as a warning marker. The light tube may be of the chemically actuated type and the base preferably has four pivotally attached resilient legs serving to ensure that the device will assume an angular position of about 45 degrees when dropped.
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