Earphone line retracting device, automatic line retracting earphone, non-radiation wire mobile phone and electronic device
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United States of America Patent
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Apr 24, 2012
Grant Date -
Jun 17, 2010
app pub date -
Jan 9, 2009
filing date -
Mar 10, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention provides an earphone line retracting device, and an automatic line retracting earphone having the earphone line retracting device, a non-radiation wire mobile phone having the earphone line retracting device, and an electronic device having the earphone line retracting device. The earphone line retracting device at least comprises: a winder, drive means driving the winder, and signal connector means, characterized in that the earphone line retracting device further comprises shift gear means, by which the drive means drives the winder.
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