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Georg-Wilhelm Oetjen
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Lubeck, DE
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last 30 patents
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Patent Grant
Humdifier and heater for air to be inhaled for connection to an inh...
Patent number
4,355,636
Issue date
Oct 26, 1982
Dragerwerk AG
Georg-Wilhelm Oetjen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Patent Grant
Humidity exchanger for a breathing apparatus
Patent number
4,327,717
Issue date
May 4, 1982
Dragerwerk Aktiengesellschaft
Georg-Wilhelm Oetjen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Humidity exchanger for a breathing apparatus
Patent number
4,318,398
Issue date
Mar 9, 1982
Dragerwerk Aktiengesellschaft
Georg-Wilhelm Oetjen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE