Training apparatus

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272134, A63B 2124

Patent

active

046359338

ABSTRACT:
A muscle toning, strengthening or exercising machine has an arm provided with grips or other body-engaging members and swingable about an axis defined by a shaft to which the arm is coupled. This shaft is connected to another shaft by a transmission having a selected transmission ratio and the other shaft is connected to an electric motor which controls the force supplied for exercising, e.g. via a crank mechanism.

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patent: 3640527 (1972-02-01), Proctor
patent: 3869121 (1975-03-01), Flavell
patent: 3902480 (1975-09-01), Wilson
patent: 4084810 (1978-04-01), Forsman
patent: 4235437 (1980-11-01), Ruis et al.
patent: 4337050 (1982-06-01), Engalitcheff, Jr.

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