Surgery – Truss – Perineal
Patent
1980-01-14
1981-09-29
Yasko, John D.
Surgery
Truss
Perineal
A61H 700
Patent
active
042916860
ABSTRACT:
A back and spine exerciser provides a slow and small amplitude cyclical action of tension and relaxation of the tension to the back and spine of a user, by applying a corresponding pull and release under the chin of the user.
REFERENCES:
patent: 3168094 (1965-02-01), Siltamaki
patent: 3710787 (1973-01-01), Rabjohn
patent: 3786803 (1974-01-01), Petulla et al.
patent: 3835847 (1974-09-01), Smith
Haskell Boris
Yasko John D.
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