| 摘要 |
A sign for indicating that assistance is required by a person in a vehicle. The sign has a body attachable to the exterior of the vehicle by a person inside the vehicle. The sign body contains an electric light connected by electrical wiring to an electrical plug insertable into an electrical socket in the vehicle. The electrical wiring includes an electrical flasher connected thereto, and the sign body has a message thereon. When the plug is inserted into the socket and the sign body is attached to the exterior of the vehicle, the light within the sign body flashes to cause the message to be readily visible to passers-by.
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