US PATENT SUBCLASS 297 / 206
.~.~ Front spring adjustably clamped to rear spring

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

195.1  DF  STRADDLE SEAT (E.G., SADDLE TYPE, ETC.) {16}
204  DF  .~ With means to adjustably set tautness of supporting surface {3}
206.~.~ Front spring adjustably clamped to rear spring

DEFINITION

Classification: 297/206

(under subclass 204) Device provided with a spring connected to the front portion of the seat and a spring connected to the rear portion of the seat, said springs being joined together by said adjusting means.