Oxygen breathing mask
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United States of America Patent
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Jul 2, 2013
Grant Date -
Jan 7, 2010
app pub date -
Jun 1, 2009
filing date -
May 30, 2008
priority date (Note) -
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Abstract
Oxygen breathing masks, as well as methods of providing oxygen to persons, are detailed. The devices may include mechanisms for supplying either oxygen or ambient air to a person depending on inspiration pressure applied by the person to a first volume to which the person's mouth and/or nose is connected.
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