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Patent Certificate on Retractable Bluetooth Headset issued by US Patent and Trademark Office on 7 Feb, 2012


Great to get the Patent Certificate on "Retractable Bluetooth Headset', which is issued by US Patent and Trademark Office on 7 Feb, 2012

Patent No.: US 8,112,132 2B
Date of Patent: Feb. 7, 2012

 

 

 

 

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