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Hans-Jorg Ziebrecht
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Lubeck, DE
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last 30 patents
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Patent Grant
Respirator construction
Patent number
4,227,523
Issue date
Oct 14, 1980
Dragerwerk Aktiengesellschaft
Detlef Warnow
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Patent Grant
Respirator for emergency air supply to a patient
Patent number
4,227,519
Issue date
Oct 14, 1980
Dragerwerk Aktiengesellschaft
Detlef Warnow
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE