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Anesthetic metering device
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Patent number 5,235,971
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Issue date Aug 17, 1993
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Dragerwerk Aktiengesellschaft
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Wolfgang Falb
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Anesthetic metering device
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Patent number 5,197,462
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Issue date Mar 30, 1993
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Dragerwerk Aktiengesellschaft
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Wolfgang Falb
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Gas testing vial
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Patent number 4,765,962
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Issue date Aug 23, 1988
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Dragerwerk AG
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Ulrich Heim
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G01 - MEASURING TESTING
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Electrically-actuable valve
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Patent number 4,750,520
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Issue date Jun 14, 1988
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Dragerwerk Aktiengesellschaft
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Ulrich Heim
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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