US PATENT SUBCLASS 128 / 205.18
.~.~ Gas supplied by piston pump

Current as of: June, 1999
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128 /   HD   SURGERY

200.24  DF  RESPIRATORY METHOD OR DEVICE {32}
204.18  DF  .~ Means for supplying respiratory gas under positive pressure {17}
205.18.~.~ Gas supplied by piston pump

DEFINITION

Classification: 128/205.18

Gas supplied by piston pump:

(under subclass 204.18) Subject matter wherein the respiratory gas is supplied by a pump comprising a piston movable within a cylinder.