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Collar microphone
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Patent number 6,178,251
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Issue date Jan 23, 2001
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Labtec Corporation
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Michael Luchs
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Microphone for flat surfaces
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Patent number D436589
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Issue date Jan 23, 2001
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Labtec Corporation
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Bruce P. Lancaster
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D14 - Recording, communication, or information retrieval equipment
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Microphone for flat surfaces
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Patent number D428406
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Issue date Jul 18, 2000
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Labtec Corporation
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Bruce P. Lancaster
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D14 - Recording, communication, or information retrieval equipment
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Headset microphone
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Patent number D410921
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Issue date Jun 15, 1999
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Labtec, Inc.
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Michael Luchs
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D14 - Recording, communication, or information retrieval equipment