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Key sheet

  • US 20070084710A1
  • Filed: 10/12/2006
  • Published: 04/19/2007
  • Est. Priority Date: 10/13/2005
  • Status: Active Grant
First Claim
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1. A key sheet, comprising:

  • a key top; and

    a base sheet formed of a heat diffusion sheet in which a graphite sheet is covered with a polymer protective layer, with the key top being arranged on the polymer protective layer.

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