Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Intercom
Patent
1988-04-19
1991-04-30
Ansher, Bernard
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Intercom
D14100, D14247
Patent
active
D03165493
REFERENCES:
patent: D254007 (1980-01-01), Hampf
patent: D303111 (1989-08-01), Paley
patent: D307587 (1990-05-01), Marcune
patent: D308669 (1990-06-01), Terry
Ansher Bernard
Pfeffer Terry A.
Tateco AB
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