Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Intercom
Patent
1996-06-14
1998-05-19
Gandy, James
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Intercom
1403
Patent
active
D03944352
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Parsadayan Alex
Parsadayan Walter
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Gandy James
Matta Cathron B.
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