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Earphone set
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Patent number 8,144,891
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Issue date Mar 27, 2012
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Merry Electronics Co., Ltd.
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Hong-Ching Her
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Earpiece device with microphone
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Patent number 8,130,995
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Issue date Mar 6, 2012
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Merry Electronics Co., Ltd.
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Hong-Ching Her
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Acoustic transducer device
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Patent number 8,103,013
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Issue date Jan 24, 2012
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Merry Electronics Co., Ltd.
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Po-Hsun Sung
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G10 - MUSICAL INSTRUMENTS ACOUSTICS