US PATENT SUBCLASS 297 / 452.41
.~ Having fluent material

Current as of: June, 1999
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297 /   HD   CHAIRS AND SEATS

452.1  DF  BOTTOM OR BACK {12}
452.41.~ Having fluent material

DEFINITION

Classification: 297/452.41

Having fluent material:

(under subclass 452.1) Device wherein the bottom or back includes a flowable medium; e.g., water, gas, air, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

284.3, and 284.6, for seats with readily adjustable fluid containing portions.