| 摘要 |
A cartridge mounted in a sleeve on the exterior of a motor vehicle door receives a planar card having raised, conductive indicia for completing an electric circuit on a plate forming a part of the cartridge. The circuit energizes a solenoid attached to an interior door handle of the vehicle for rotating the handle to unlock the door when the vehicle keys have been lost, misplaced or inadvertently left in the ignition, and the doors of the vehicle have been locked.
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