| 摘要 |
A coded security system for an electrical circuit energizing safety lights installed on a vehicle is disclosed. The system comprises a bank of series connected toggle switches which can be operated in one position following a predetermined code for completing an electrical circuit through the terminals of all the switches, means for connecting one terminal of one of the toggle switches to a source of power, and means for connecting one of the terminals of the last toggle switch in the series to the circuit, whereby operation of the toggle switches following the predetermined code will complete the electrical circuit and energize the circuit.
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