Undertaking
Patent
1982-11-04
1984-07-17
Johnson, Richard J.
Undertaking
272141, A63B 2302
Patent
active
044601719
ABSTRACT:
The device is composed of a rail adapted to be mounted on a wall and provided with a slider. A rocker arm pivotable against the action of a spring force is supported on the slider, a support adapted to be pressed against with the back of the head being mounted to the rocker arm. The device is suited for exercising the muscles determining body posture, which muscles do not generally get exerted in customary sport and gymnastics exercises.
REFERENCES:
patent: 944648 (1909-12-01), Austin
patent: 2319109 (1943-05-01), Bullock
patent: 3427021 (1969-02-01), Donato
patent: 3795396 (1974-03-01), Kropelnitski
patent: 3927879 (1975-12-01), Long
patent: 4239209 (1980-12-01), Curchod
Nautilus Instruction Manual Cover and p. 29, Jun. 1979, Published for Nautilus Sports/Medical Ind., DeLand, Florida.
Johnson Richard J.
Marenko Oy
Saffitz A. A.
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