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Inventor
HUNTRESS CHARLES B
3 patents
Patents
3 patents
US4055233A
Oct 25, 1977
Ear coupler
ELECTRONIC ENG CO
142 citations
91
US4029169A
Jun 14, 1977
Acoustic yoke
ELECTRONIC ENG CO
18 citations
68
US4028491A
Jun 7, 1977
Transducer switching system
ELECTRONIC ENG CO
3 citations
57