Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1982-03-09
1984-10-16
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
D14 54, D14 58, D14106
Patent
active
D02759543
REFERENCES:
patent: D224539 (1972-08-01), Vaskunas
patent: D226920 (1973-05-01), Molyneaux
patent: D227994 (1973-07-01), Keenan
patent: D235654 (1975-07-01), Crabbe et al.
Levine Alan H.
Lucas Susan J.
Mitel Corporation
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