US PATENT SUBCLASS 128 / 200.29
.~ Underwater exhalation dispersing means

Current as of: June, 1999
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128 /   HD   SURGERY

200.24  DF  RESPIRATORY METHOD OR DEVICE {32}
200.29.~ Underwater exhalation dispersing means

DEFINITION

Classification: 128/200.29

Underwater exhalation dispersing means:

(under subclass 200.24) Subject matter for dispersing exhaled gas from a diver's mask, helmet, or other underwater apparatus into ambient water in finely divided form.

(1) Note. Devices in this subclass are usually for preventing detection of the diver or for decreasing the noise caused by exhalation into water to improve communication between divers.