Knud Gerdes

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Bochum, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for strengthening and sealing geological formations
- Patent number 4,761,099
- Issue date Aug 2, 1988
- Bayer Aktiengesellschaft
- Max Mann
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...