US Patent D542773 High fidelity noise excluding earphones with ergonomically designed construction

Patent D542773 was granted and assigned to Etymotic Research on May, 2007 by the United States Patent and Trademark Office.

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Patent Number

Patent Inventor Names

Viorel Drambarean0

Andrew J. Haapapuro0

Mead C. Killion0

Date of Patent

May 15, 2007

Patent Application Number

292324570

Date Filed

June 20, 2005

Patent Primary Examiner

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