Surgery – Truss – Perineal
Patent
1978-12-12
1980-11-11
Michell, Robert W.
Surgery
Truss
Perineal
128DIG23, A61H 102
Patent
active
042326630
ABSTRACT:
A cervical collar which is made of a pad of resilient foam material with a scalloped depressed area at the middle of the inside surface of the collar whereby a user's chin is supported in the depression and pressure on a user's throat area is relieved by the reduced thickness provided by the depression.
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patent: 3804087 (1974-04-01), Sarnoff
patent: 3810466 (1974-05-01), Rogers
patent: 3850164 (1974-11-01), Hare
patent: 3964474 (1976-06-01), Fox
Michell Robert W.
Rose Arthur S.
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