Anna-Maria Weiss

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Wunsiedel, DE

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Patents Grantslast 30 patents

Information Patent Grant
Protective breathing mask
- Patent number 4,883,052
- Issue date Nov 28, 1989
- Helsa-Werke Helmut Sandler GmbH & Co. KG
- Anna-Maria Weiss
- A41 - WEARING APPAREL