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  • Inventor(s):
    Stephen L. Colucci, Michael T. Elliott, Ronald L. Erichsen, David L. Sypniewski, Frank E. Vopat
    Patent Number:
    US 3805246 B2

    An electrical lock mechanism includes a series of sequentially connected memory storage elements, such as flip-flops, terminating in one or more electrical and/or electromechanical devices that control an external function. Entries into the circuit are made from a plurality of remote switches or switching devices connected to interlocks or logic elements, such as nand gates, that are connected between adjacent memory storage elements. Entry to the circuit through the interlocks in a single pr…

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