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PORTABLE BREATHING DEVICE

  • US 20080053456A1
  • Filed: 08/28/2007
  • Published: 03/06/2008
  • Est. Priority Date: 09/05/2006
  • Status: Active Grant
First Claim
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1. A breathing device which comprises:

  • a base unit;

    a head unit detachably attached to the base unit;

    a conduit in the head unit through which a user can breathe; and

    a valve mounted in the conduit arranged to interrupt the flow of air down the conduit.

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