Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent
1981-06-12
1983-12-27
Rubinson, G. Z.
Acoustics
Anatomic or prosthetic relation
Ear and mouth
179156A, 179179, 179187, 181 21, 181198, H04R 128
Patent
active
044232934
ABSTRACT:
A microphone holding device which holds a microphone in a casing so that the microphone is disposed substantially perpendicularly to the surface of a concave of a helmet, etc. for receiving the microphone in it. Thus, both the sound collecting portion and the opposed end of the microphone are kept freely communicated with the outside of the casing.
REFERENCES:
patent: 2518805 (1950-08-01), Massa
patent: 4263484 (1981-04-01), Hisatsune et al.
Manaka Tetsuyuki
Murayama Masato
Byrd Danita R.
Clarion Co. Ltd.
Rubinson G. Z.
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