Sound attenuating earcup assembly provided with receivers and co

Details Sound attenuating earcup assembly provided with receivers and co Sound attenuating earcup assembly provided with receivers and co

1976-11-05

1978-05-02

Cooper, William C.

179182R, H04M 105, H04R 110

Patent

active

040876535

ABSTRACT:
A head gear assembly including first and second sound attenuating earcups and means for supporting the earcups over the ears of a wearer and in which each of said earcups has an earphone therein, one of said earcups has a contact microphone therein and switch means is provided for enabling said contact microphone while disabling the earphone in the cup in which the contact microphone is located.

REFERENCES:
patent: 1984062 (1934-12-01), Foley
patent: 2142993 (1939-01-01), Brown
patent: 3087028 (1963-04-01), Bonnin
patent: 3869584 (1975-03-01), Wilde

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