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Ultrasonic plethysmograph
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Patent number 5,289,820
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Issue date Mar 1, 1994
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The Board of Regents of the University of Washington
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Kirk W. Beach
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Ultrasonic plethysmograph
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Patent number 5,183,046
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Issue date Feb 2, 1993
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Board of Regents of the University of Washington
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Kirk W. Beach
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Ultrasonic plethysmograph
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Patent number 5,088,498
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Issue date Feb 18, 1992
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The Board of Regents of the University of Washington
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Kirk W. Beach
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Ski speedometer
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Patent number 4,722,222
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Issue date Feb 2, 1988
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Skisonics Corporation
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Peter K. Purdy
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G02 - OPTICS