(under subclass 92) Subject matter wherein the pressure opposing structure derives its opposing pressure from the tendency of a motionless mass to remain motionless, a moving mass to remain in motion, or an accelerating or decelerating mass to resist a change in acceleration or deceleration.
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93+, for apparatus which derives its opposing pressure from the force gravity exerts upon a mass as the user manipulates the mass.
133+, for a frame which supports both the user and force resisting apparatus while force exerted by the user is transmitted through the frame and wherein details of the inertial force resistance apparatus are not claimed.
139, for a user interface element wherein details of the inertial force resistance apparatus are not claimed.