Willi Backhaus

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Goslar, DE

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Patents Grantslast 30 patents

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Silicate raw material for ceramics, process for preparing same and...
- Patent number 4,721,693
- Issue date Jan 26, 1988
- Zinkweiss-Forschungsgesellschaft mit beschrankter Haftung
- Siegfried Lenk
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES