Frithjof Koerdt

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Schonborn, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing a light, open-pored, mineral insulating board
- Patent number 5,871,677
- Issue date Feb 16, 1999
- Hebel Aktiengesellschaft
- Silke Falke
- B28 - WORKING CEMENT, CLAY, OR STONE