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Portable radio receiver unit

  • US 20050202788A1
  • Filed: 03/02/2005
  • Published: 09/15/2005
  • Est. Priority Date: 03/03/2004
  • Status: Abandoned Application
First Claim
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1. A portable radio receiver unit, comprising:

  • a housing having interface controls;

    means connected to the housing for receiving radio communications by radio transmissions over radio frequencies, the portable radio receiver unit capable of receiving radio communications over a frequency range including 450-470 MHz, wherein operation of the portable radio receiver unit is controlled solely by operation of four interface controls disposed in the housing.

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