US PATENT SUBCLASS 600 / 541
.~.~.~.~ Bellows or expansible bag

Current as of: June, 1999
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600 /   HD   SURGERY

300  DF  DIAGNOSTIC TESTING {38}
529  DF  .~ Respiratory {8}
538  DF  .~.~ Measuring breath flow or lung capacity {2}
540  DF  .~.~.~ Breath exhaled into or inhaled from expansible chamber {2}
541.~.~.~.~ Bellows or expansible bag

DEFINITION

Classification: 600/541

Bellows or expansible bag:

(under subclass 540) Subject matter wherein the expansible chamber is a bellows or expansible bag.