Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1988-06-16
1990-12-04
Burke, Wallace R.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03126277
REFERENCES:
patent: D260881 (1981-09-01), McKinsey et al.
patent: D282260 (1986-01-01), Carlson et al.
patent: D285926 (1986-09-01), Kies et al.
patent: D286053 (1986-10-01), McDaniel et al.
patent: D299139 (1988-12-01), Toft et al.
patent: D303252 (1989-09-01), Shih
patent: 3728470 (1973-04-01), Maier
Precision Components, Inc.'s advertisement for Data Switch in Teleconnect Magazine, May, 1988.
TVMP, Inc.'s advertisement for Phoneflex in PC Week Magazine, Jun. 1988.
A-JEM's Sheet, Jan., 1988.
Burke Wallace R.
Nunn Freda S.
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