W. Haldenwanger KG

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Waldkraiburg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method and device for the production of an oxide ceramic tube
- Patent number 4,256,686
- Issue date Mar 17, 1981
- W. Haldenwanger KG
- Leonhard E. Froschauer
- B28 - WORKING CEMENT, CLAY, OR STONE