US PATENT SUBCLASS 297 / 411.28
.~.~.~ And to back

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

411.2  DF  ARMREST {11}
411.26  DF  .~ Detachably interfitted to a particular chair or seat at a connecting joint {2}
411.27  DF  .~.~ To bottom {1}
411.28.~.~.~ And to back

DEFINITION

Classification: 297/411.28

And to back:

(under subclass 411.27) Armrest further detachably interfitted to a back or (back frame) of the seating device.