Surgery – Truss – Perineal
Patent
1987-03-23
1988-06-14
Hafer, Robert A.
Surgery
Truss
Perineal
1281011, 340668, A61F 503
Patent
active
047504803
ABSTRACT:
Improvements in posture-correcting devices include a switch, wherein the switch has one contact mounted on an elastic length of material connected to a strap and the other contact connected to an inelastic pad. In addition, the improvements include readily detachable electrical circuits so that a circuit incorporating a particular type of signalling device can be selected for use.
REFERENCES:
patent: 2681955 (1954-06-01), Davis
patent: 3582935 (1971-06-01), Verhaeghe
patent: 3608541 (1971-09-01), Hall
patent: 3642276 (1972-02-01), Kropf
patent: 3670320 (1972-06-01), Palmer
patent: 4007733 (1977-02-01), Celeste et al.
patent: 4191949 (1980-03-01), Myers
patent: 4392126 (1983-07-01), Loyola
Hafer Robert A.
Rooney Kevin
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