Airline telephone handset with digital passenger control functio

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment

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D14147

Patent

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D03630684

REFERENCES:
patent: D291564 (1987-08-01), Kajita
patent: D297733 (1988-09-01), Watanabe
patent: D305232 (1989-12-01), Sutoh
patent: D305652 (1990-09-01), Tejima
patent: D322438 (1991-12-01), Skowronski
patent: D339803 (1993-09-01), Ditzig et al.
patent: D340452 (1993-10-01), Skowronski
patent: 4860336 (1989-08-01), D'Avello et al.
patent: 4868862 (1989-09-01), Ryoichi et al.
patent: 5155766 (1992-10-01), Skowronski
patent: 5157722 (1992-10-01), Hollowed et al.
Flight Link II Advertisement, In-Flight Phone Corporation, pp. 1-2, 1993.
In-Flight Phone System Advertisement, In Flight Phone Corporaiton, pp. 1-4, 1991.
Flight Link Advertisement, In-Flight Phone International, p. 1, 1992.
Covens, Lloyd; "Air-to-Ground Service Takes Off", Reprinted from Communications, pp. 1-4, Apr. 1991.

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