1987-11-23
1989-05-16
Apley, Richard J.
Undertaking
272144, A63B 2100
Patent
active
048303674
ABSTRACT:
An exercise device having parallel side beams supported horizontally, and also having straps extending between the beams, is provided with auxiliary body-engaging transverse members disposed at a vertical distance from the plane of the side beams. The device also has auxiliary supports for limiting body stress and deflection.
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patent: 4182511 (1980-01-01), Camp, Jr.
patent: 4583731 (1986-04-01), Crivello et al.
Apley Richard J.
Spine Design, Inc.
Welsh J.
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