Karaoke music player

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

Patent

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Details

D14299, D17 24

Patent

active

D03660419

REFERENCES:
patent: D163698 (1951-06-01), Keller
patent: D169559 (1953-05-01), Otto
patent: D169566 (1953-05-01), Somers
patent: D323326 (1992-08-01), Takawo
patent: D328621 (1992-08-01), Kabayashi

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