Audio processing device

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Video

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1402

Patent

active

D04206614

REFERENCES:
patent: D328073 (1992-07-01), Yamakawa
patent: D366871 (1996-02-01), Richardson et al.
patent: D373582 (1996-09-01), Hasegawa
patent: D378677 (1997-04-01), Matsumoto et al.
patent: D395652 (1998-06-01), Grimm et al.
patent: D399840 (1998-10-01), Curbbun et al.
patent: 2502011 (1950-03-01), Kendall et al.
patent: 3375054 (1968-03-01), Hughes
patent: 4320942 (1982-03-01), Bauer
patent: 4673267 (1987-06-01), Erxleben
"SDP-E800", Sony Electronics Inc., Jan., 1997.

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