Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1991-09-18
1993-12-14
Burke, Wallace R.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03422437
REFERENCES:
patent: 134116 (1872-12-01), West
patent: D328598 (1992-08-01), Massey
patent: D328892 (1992-08-01), Miller
patent: 4621781 (1986-11-01), Springer
patent: 4776284 (1988-10-01), McIntosh
patent: 4989819 (1991-02-01), Sigler
patent: 5131614 (1992-07-01), Garcia et al.
Burke Wallace R.
Tschida Douglas L.
Tung M. H.
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