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RADIO RECEIVING MEANS

  • US 3,821,647 A
  • Filed: 02/06/1973
  • Issued: 06/28/1974
  • Est. Priority Date: 06/01/1971
  • Status: Expired due to Term
First Claim
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1. Radio frequency receiving means comprising;

  • an earpiece assembly having a generally tubular portion insertable in the ear canal;

    said tubular portion including an outer metallic portion which contacts the wall of said canal of a user when said assembly is inserted in the ear canal;

    said assembly including a transducer with two electrical terminals;

    said transducer being mounted on said assembly for the transmission of sound therefrom and through said tubular portion and into said ear canal;

    a pair of receiving terminals;

    means connecting said metallic portion to one of said receiving terminals;

    a lead extending from said assembly and having one of its ends connected to the other one of said receiving terminals; and

    quickly attachable and detachable means connected to the other end of said lead, metallic or insulator means connected to said attachable and detachable means whereby the user'"'"''"'"'s body may serve either as ground or an an antenna, respectively.

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