U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

An apparatus for the deployment of a visible plume to alert other motorists that a proximate motor vehicle has been involved in a collision.

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Class 330/93 - Including positive feedback

Subclass of Class 330 - Amplifiers
Definition: Subject matter including a signal feedback means whereby
No. of patents: 0