Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1997-09-18
1999-10-26
Nunn, Freda
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
1402
Patent
active
D04157451
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patent: 5219136 (1993-06-01), Hassel et al.
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patent: 5375800 (1994-12-01), Wilcox et al.
patent: 5553820 (1996-09-01), Ambrose
Clark Enterprises
Marasco Joseph A.
Nunn Freda
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