Karl Knauf

Follow

Person

Iphofen, DT

People

Patents Grantslast 30 patents

Information Patent Grant
Multi-layer plasterboard
- Patent number 3,993,822
- Issue date Nov 23, 1976
- Gebr. Knauf Westdeutsche Gipswerke
- Alfons Knauf
- B28 - WORKING CEMENT, CLAY, OR STONE