US PATENT SUBCLASS 297 / 252
.~ Fore or aft board straddling clamps

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

250.1  DF  SUPPLEMENTAL SEAT (E.G., CHILD SEAT, ETC.) {8}
252.~ Fore or aft board straddling clamps

DEFINITION

Classification: 297/252

(under subclass 250.1) Device wherein the other seat comprises a horizontal plank and the auxiliary bottom is secured thereto by a clamp extending in a front-to-rear direction and encompassing the plank.