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Mass excited acoustic device
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Patent number 6,023,515
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Issue date Feb 8, 2000
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Motorola, Inc.
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John M. McKee
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Inertial acoustic pickup
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Patent number 5,552,562
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Issue date Sep 3, 1996
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Motorola, Inc.
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Allen D. Hertz
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Belt clip assembly
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Patent number 5,379,490
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Issue date Jan 10, 1995
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Motorola
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Henry Wandt
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G08 - SIGNALLING
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Static protective housing
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Patent number 4,602,311
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Issue date Jul 22, 1986
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Motorola, Inc.
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Robert D. Lloyd
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR