(under subclass 200.24) Subject matter including a chamber for subjecting the body to less than atmospheric pressure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
205.26, for atmosphere enclosures, such as oxygen tents and chambers, for pressurizing the whole body.
SEE OR SEARCH CLASS
454, Ventilation,
70, 238, 255, and 340 for living enclosures having automatically controlled pressure conditions without the addition of medicaments or other surgical treatment.
