Human mouth model for speech therapy

Details Human mouth model for speech therapy Human mouth model for speech therapy

1976-12-30

1978-02-14

Grieb, William H.

G09B 1904

Patent

active

040730719

ABSTRACT:
A human mouth model for speech therapy instruction including a transparent upper jaw portion including a hard palate portion, soft palate portion, gums, and a set of upper teeth; a transparent lower jaw portion including a mouth floor, gums, and a set of lower teeth; an opening formed by the rearward ends of the jaw portions in the area of the oral part of the pharynx; and hinge means interconnecting the rearward ends of the jaw portions.

REFERENCES:
patent: 1034297 (1912-07-01), Priest
patent: 1667205 (1928-04-01), Ingwersen
patent: 1850899 (1932-03-01), Smith
patent: 2045962 (1936-06-01), Rastetter
patent: 2138254 (1938-11-01), Mink
patent: 2266434 (1941-12-01), Morrison
patent: 2574838 (1951-11-01), Olson
patent: 3236006 (1966-02-01), Carroll
patent: 3410003 (1968-11-01), Sovijarvi et al.
patent: 3931679 (1976-01-01), Carter

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