Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Speaker or housing therefor
Patent
1990-11-05
1993-03-02
Feifer, Melvin B.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Speaker or housing therefor
Patent
active
D03336590
REFERENCES:
patent: D55726 (1920-07-01), Stolzenburg et al.
patent: 3984885 (1976-10-01), Yoshimura et al.
patent: 4245136 (1981-01-01), Krauel
patent: 4517418 (1985-05-01), Baran
patent: 4529058 (1985-07-01), Emery
patent: 4571746 (1986-02-01), Gorike
patent: 4683587 (1987-07-01), Silverman
patent: 4829571 (1989-05-01), Kakiuchi
Feifer Melvin B.
Gernstein Terry M.
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