US PATENT SUBCLASS 128 / 203.25
.~.~ Means for varying treating agent/respiratory gas ratio

Current as of: June, 1999
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128 /   HD   SURGERY

200.24  DF  RESPIRATORY METHOD OR DEVICE {32}
203.12  DF  .~ Means for mixing treating agent with respiratory gas {16}
203.25.~.~ Means for varying treating agent/respiratory gas ratio

DEFINITION

Classification: 128/203.25

Means for varying treating agent/respiratory gas ratio:

(under subclass 203.12) Subject matter including a means for varying the amount of treating agent added to respiratory gas.