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HEADSET AND HEADPHONE
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Axel Schmidt
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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HEADSET AND HEADPHONE
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Sennheiser electronic GmbH & Co., KG
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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EARPHONE, HEADSET AND EAR PAD
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Publication number 20100158301
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Publication date Jun 24, 2010
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SENNHEISER ELECTRONIC GMBH & CO. KG
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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EARPHONE AND HEADSET
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Publication date Dec 31, 2009
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SENNHEISER ELECTRONIC GMBH & CO. KG
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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EARPHONE AND HEADSET
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Publication date Dec 31, 2009
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SENNHEISER ELECTRONIC GMBH & CO. KG
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Olaf Leske
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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EARPHONE AND HEADSET
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SENNHEISER ELECTRONIC GMBH & CO. KG
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Jan Peter Kuhtz
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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EARPHONE, HEADSET AND EAR PROTECTOR
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Publication number 20090154754
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Publication date Jun 18, 2009
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SENNHEISER ELECTRONIC GMBH & CO. KG
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Jan Peter Kuhtz
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE