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Bell Telephone Labor Inc |
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1955-11-30 |
1962-09-25 |
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Loud speaker fixing holder
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Loudspeaker
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Speaker
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2003-11-19 |
2005-04-26 |
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Speaker
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2004-09-24 |
2006-10-10 |
Matsushita Electric Industrial Co., Ltd. |
Speaker for an automobile
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鸿富锦精密工业（深圳）有限公司 |
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Yoon Tone |
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2015-02-24 |
Samsung Electronics Co., Ltd. |
Audio speaker
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Loudspeaker and loudspeaker structure
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