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Ultrasonic transducer
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Patent number 6,825,594
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Issue date Nov 30, 2004
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Siemens Aktiengesellschaft
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Rudolf Thurn
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Ultrasonic transducer
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Patent number 6,122,970
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Issue date Sep 26, 2000
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Siemens AG
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Rudolf Thurn
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B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
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Ultrasound transducer
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Patent number 6,107,722
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Issue date Aug 22, 2000
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Siemens AG
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Rudolf Thurn
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B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
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Ultrasonic transducer
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Patent number 5,659,220
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Issue date Aug 19, 1997
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Siemens Aktiengesellschaft
-
Rudolf Thurn
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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