US PATENT SUBCLASS 482 / 30
.~.~ Spring board

Current as of: June, 1999
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482 /   HD   EXERCISE DEVICES

23  DF  GYMNASTIC {8}
26  DF  .~ Projector {2}
30.~.~ Spring board {2}
31  DF  .~.~.~> Spring external to board
32  DF  .~.~.~> Movable fulcrum

DEFINITION

Classification: 482/30

Spring board:

(under subclass 26) Subject matter wherein the thrusting acrobatic apparatus is a thin, elongated, planar member secured near one end and cantilevered outwardly therefrom for propelling the user by employing either the resilient material of the planar member itself or a separate resilient element associated therewith.