Hans-Joachim Topfer

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Backnang, DE

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Patents Grantslast 30 patents

Information Patent Grant
Multilayered, textile, gas-permeable filter material against toxic...
- Patent number 5,731,065
- Issue date Mar 24, 1998
- Alfred Karcher GmbH & Co.
- Helmut Stelzmuller
- D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS