US Patent D535644 High-fidelity noise-excluding earphones with ergonomically designed construction

Patent D535644 was granted and assigned to Etymotic Research on January, 2007 by the United States Patent and Trademark Office.

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Patent Number

Patent Inventor Names

Andrew J. Haapapuro0

Mead C. Killion0

Viorel Drambarean0

Date of Patent

January 23, 2007

Patent Application Number

292610860

Date Filed

June 7, 2006

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