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Part of an electrical connecting device

  • US 7,856,977 B2
  • Filed: 02/28/2007
  • Issued: 12/28/2010
  • Est. Priority Date: 03/02/2006
  • Status: Expired due to Fees
First Claim
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1. An electrical connecting device comprising:

  • a display device to display an effect on the device resulting from a preparatory operation to use the device, the display to include a visible field whose colored appearance changes at least in sections as a reaction to the effect resulting from the preparatory operation;

    wherein the colored appearance changes include the colored appearance changing from a first state to a second state, wherein a difference in the first and second states is discernible by a human viewer when the effect exceeds a predetermined degree;

    wherein the predetermined degree is at least partially determined by a number of prior preparatory operations; and

    wherein the number of prior preparatory operations is a predetermined maximum number of prior preparatory operations after which the proper functioning of the device is no longer ensured.

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