US PATENT SUBCLASS 297 / 423.38
.~.~ Rectilinearly in vertical direction

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

423.1  DF  REST FOR KNEE, LEG, OR FOOT {6}
423.19  DF  .~ Connected to chair or seat for relative movement {5}
423.38.~.~ Rectilinearly in vertical direction

DEFINITION

Classification: 297/423.38

Rectilinearly in vertical direction:

(under subclass 423.19) Device wherein the rest is configured to move relative to the seating device along a straight line substantially perpendicular to a horizontal plane.