| http://www.w3.org/ns/prov#value | - Patent US7702122 - Headgear for docking and listening to portable audio devices - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More ??Sign inAdvanced Patent SearchPatentsA cap for listening to an audio device such as an MP3 player or iPod has a pocket in the back with a spring-loaded double-ended retractor for pulling a stereo jack to the front of the cap for connecting to an aud
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