US PATENT SUBCLASS 297 / 440.21
.~.~ Including a substantially upright post slidably inserted into an elongated recess

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

440.1  DF  HAVING DETACHABLY INTERFITTING PARTS OR COMPONENTS; I.E., KNOCKDOWN {9}
440.2  DF  .~ Interfitted back and back frame {1}
440.21.~.~ Including a substantially upright post slidably inserted into an elongated recess

DEFINITION

Classification: 297/440.21

Including a substantially upright post slidably inserted into an elongated recess:

(under subclass 440.2) Device in which one of the back or back frame includes a substantially vertical extending elongated element which is received within a comparably sized aperture located in the other of said back or back frame.