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Call device-attached patrol recorder

  • US 4,857,883 A
  • Filed: 08/11/1986
  • Issued: 08/15/1989
  • Est. Priority Date: 08/23/1985
  • Status: Expired due to Fees
First Claim
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1. A call device-attached patrol recorder system comprising:

  • a plurality of coders, each having a unique position code, said coders arranged along check positions of a patrol course such that said position codes respectively correspond to said check positions;

    at least one movable patrol recorder including a means for storing patrol information, wherein said patrol information includes a position code and a patrol time of one of said plurality of coders, said position code and patrol time being stored by inserting said patrol recorder into said one of said plurality of coders;

    a fixed central unit including a means for reading out and printing out said patrol information recorded in said at least one patrol recorder on paper;

    said at least one patrol recorder also including a call signal receiving means for receiving a call signal emitted from a transmitter means disposed by said central unit and a call signal acknowledging means for acknowledging the receipt of said call signal.

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