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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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Valveless pump
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Patent number 5,024,587
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Issue date Jun 18, 1991
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Dragerwerk Aktiengesellschaft
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Christoph Maurer
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Pressure reducer
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Patent number 4,773,443
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Issue date Sep 27, 1988
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Dragerwerk Aktiengesellschaft
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Christoph Maurer
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G05 - CONTROLLING REGULATING
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Pressure reducer
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Patent number 4,768,548
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Issue date Sep 6, 1988
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Dragerwerk Aktiengesellschaft
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Christoph Maurer
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G05 - CONTROLLING REGULATING