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The ornamental design for a portable audio system, substantially as shown and described.
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The dotted line portions of the drawings represent environmental structure only and form no part of the claimed design.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Apr 15 2011 | Bose Corporation | (assignment on the face of the patent) | / | |||
May 22 2011 | JANG, STUART RAYMOND | Bose Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 026387 | /0554 |
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