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Intermittent regulator
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Patent number 6,228,056
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Issue date May 8, 2001
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Boehringer Laboratories, Inc.
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John R. Boehringer
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Gauge
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Patent number D419084
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Issue date Jan 18, 2000
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Boehringer Laboratories, Inc.
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John R. Boehringer
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D10 - Measuring, testing, or signalling instruments
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Gauge body
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Patent number D417409
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Issue date Dec 7, 1999
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Boehringer Laboratories, Inc.
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John R. Boehringer
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D10 - Measuring, testing, or signalling instruments
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Gauge
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Patent number 5,992,239
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Issue date Nov 30, 1999
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Boehringer Laboratories, Inc.
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John R. Boehringer
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE