(under subclass 621) Subject matter in which body member support or restraining accessory is specially adapted to support or restrain the user's lower body portions such as the thighs, legs and feet.
(1) Note. This subclass includes patents in which the soles of the feet are supported on a vertical plate attached at the foot end of the body support.
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610, for invalid beds or surgical supports that are tiltable along a transverse axis, some of which include a vertical plate at the foot end of the support, to prevent the sliding of the user's body from the support surface, when the support is tilted to a vertical position.
