Horst Kretzer

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Beckum, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for the heat treatment of fine-grained material
- Patent number 4,579,526
- Issue date Apr 1, 1986
- Krupp Polysius AG
- Wilfried Kreft
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Process for the production of cement in a fluidized bed
- Patent number 4,213,790
- Issue date Jul 22, 1980
- Polysius AG
- Klaus Bauer
- B60 - VEHICLES IN GENERAL