Portable audio device

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

Design Patent

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Design Patent

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29226939

CLAIM:
The ornamental design for a portable audio device, as shown and described.

REFERENCES:
patent: D427176 (2000-06-01), Obata
patent: D463393 (2002-09-01), Kataoka
patent: D473204 (2003-04-01), Tanio
patent: D473535 (2003-04-01), Ishii
patent: D483281 (2003-12-01), Cobigo
patent: D484482 (2003-12-01), Tanio
patent: D486469 (2004-02-01), Morita
patent: D487470 (2004-03-01), Cobigo

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