Johann Penkner

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Tacherting, DE

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Patents Grantslast 30 patents

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Co-polymers based on oxyalkyleneglycol alkenyl ethers and unsaturat...
- Patent number 5,798,425
- Issue date Aug 25, 1998
- SKW Trostberg Aktiengesellschaft
- Gerhard Albrecht
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES