US PATENT SUBCLASS 5 / 673
.~.~ Including air removal (e.g., burping) means

Current as of: June, 1999
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5 /   HD   BEDS

665  DF  WATERBED OR ASSOCIATED DEVICE {14}
671  DF  .~ With filling or draining means {2}
673.~.~ Including air removal (e.g., burping) means

DEFINITION

Classification: 5/673

Including air removal (e.g., burping) means:

(under subclass 671) Waterbed filling or draining means having means to release gas that accumulates in a liquid filled bladder.