Ludwig Ernstbrunner

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Patents Grantslast 30 patents

Information Patent Grant
Method of producing cement clinker
- Patent number 5,199,987
- Issue date Apr 6, 1993
- Wopfinger Stein- und Kalkwerke Schmid & Co.
- Ludwig Ernstbrunner
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES