US PATENT SUBCLASS 297 / 230.12
.~ Including a rigid panel

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

230.1  DF  SUPPLEMENTAL BACK {4}
230.12.~ Including a rigid panel

DEFINITION

Classification: 297/230.12

Including a rigid panel:

(under subclass 230.1) Device wherein the supplemental back

includes a continuous sheet made of material which is substantially unyieldable.