Reinhard Eifrig

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Lubeck, DE

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Patents Grantslast 30 patents

Information Patent Grant
Respirator with a pressure relief valve
- Patent number 6,244,267
- Issue date Jun 12, 2001
- Dräger Medizintechnick GmbH
- Reinhard Eifrig
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Controllable expiration valve arrangement for a ventilating apparatus
- Patent number 5,063,925
- Issue date Nov 12, 1991
- Dragerwerk Aktiengesellschaft
- Helge Frank
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE