Sound producing device for an electronic instrument such as...

Details Sound producing device for an electronic instrument such as... Sound producing device for an electronic instrument such as...

2006-05-23

2006-05-23

Chiang, Jack (Department: 2642)

Telephonic communications

Terminal

Housing or housing component

C379S420020

Reexamination Certificate

active

07050578

ABSTRACT:
A sound producing device has an electroacoustic transducer mounted in a case. A sound discharging nozzle is projected from the case and communicated with an upper chamber above the electroacoustic transducer.

REFERENCES:
patent: 4588867 (1986-05-01), Konomi
patent: 4720857 (1988-01-01), Burris et al.
patent: 6061459 (2000-05-01), Kobayashi et al.
patent: 2272604 (1998-01-01), None
patent: 1278636 (2001-01-01), None

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