US PATENT SUBCLASS 297 / 151
.~.~.~ Pin and slot type

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

135  DF  WITH TABLE, DESK, OR EASEL {13}
148  DF  .~ Table supported on both arms {4}
149  DF  .~.~ Horizontally adjustable {2}
151.~.~.~ Pin and slot type

DEFINITION

Classification: 297/151

(under subclass 149) Device in which the adjusting means includes a detent (e.g., projection or tongue) and a plurality of notches or apertures, for the reception thereof.