Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1994-02-23
1995-09-19
Nunn, Freda S.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03624323
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Microsoft Corporation
Nunn Freda S.
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