Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Element or attachment
Patent
1988-09-30
1989-05-16
Fay, Jr., Horace B.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Element or attachment
Patent
active
D03011461
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Jackwicz William V.
Jampathom Sompoppol
Joffe Richard M.
Liebler Charles F.
American Telephone and Telegraph Company, Inc.
AT&T Information Systems
Fay Jr. Horace B.
Williamson Samuel R.
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