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Hans-Jurgen Gach
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Aiterhofen, DE
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Patents Grants
last 30 patents
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Patent Grant
Loudspeaker with a front-mounted sealing element and method of manu...
Patent number
6,661,902
Issue date
Dec 9, 2003
Harman Audio Electronic Systems GmbH
Gerhard Ziegler
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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last 30 patents
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Patent Application
Loudspeaker with a front-mounted sealing element and method of manu...
Publication number
20040062407
Publication date
Apr 1, 2004
Harman Audio Electronic Systems GmbH
Gerhard Ziegler
H04 - ELECTRIC COMMUNICATION TECHNIQUE