Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1991-02-07
1992-12-15
Holtje, Nelson C.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
D14116, D19 41, D19 49, D19 51
Patent
active
D03317501
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patent: 4532376 (1985-07-01), Rockwell
patent: 4667182 (1987-05-01), Murphy
Holtje Nelson C.
Thompson Martha
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