| 摘要 |
An electrical switch for use in conjunction with a key operated ignition control for a road vehicle includes a hollow body carrying a pair of fixed contacts. A movable bridging contact is movable by an insulating operating member into engagement with the fixed contacts to bridge the fixed contacts when the operating key is inserted into the ignition control. The switch is used in conjunction with an alarm device and a switch operated by the driver's door of the vehicle, so that the alarm device is operated when the driver's door is opened with the key left in the ignition control.
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