Acoustic coupler for transmitting data by way of a telephone

Details Acoustic coupler for transmitting data by way of a telephone Acoustic coupler for transmitting data by way of a telephone

1985-04-30

1989-01-17

Burke, Wallace R.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Element or attachment

Patent

active

D02994577

REFERENCES:
patent: D258061 (1981-01-01), Foreman
patent: D265992 (1982-08-01), Hirata et al.
patent: D266510 (1982-10-01), Iijima
patent: D279184 (1985-06-01), Sakamoto
patent: D280504 (1985-09-01), Walker, Jr.
patent: D281517 (1985-11-01), Kolich
patent: D282542 (1986-02-01), Mo
patent: D285073 (1986-08-01), Danielson et al.
patent: D288562 (1987-03-01), Asaki
patent: 4246444 (1981-01-01), Mason
patent: 4446333 (1984-05-01), Kessler

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