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1955-10-04 |
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Ear protector
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1960-10-24 |
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1986-05-27 |
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Sarnoff Corporation |
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Communication device
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2002-10-08 |
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Communication device
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2004-01-07 |
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Logitech Europe S.A. |
Headset
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Cotron Corporation |
Earphone
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Shure Acquisiton Holdings, Inc. |
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Victor Company Of Japan, Limited |
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Canal hearing device with disposable battery module
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Earphone
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Siemens Medical Instruments Pte. Ltd. |
Hörgerät mit Ohrhakensicherung
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Earloomz LLC |
Earphone
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Earphone
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2010-09-03 |
2011-07-19 |
Nokia Corporation |
Headset
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Akoustyx Ltd. |
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2020-07-07 |
Sonova Ag |
Hearing aid
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2022-01-11 |
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2020-09-08 |
2021-03-08 |
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