Elfi Waldschmidt

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Bad Camberg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Superconductors Bi-Sr-Cu-O
- Patent number 4,990,488
- Issue date Feb 5, 1991
- Hoechst Aktiengesellschaft
- Hans-Georg von Schnering
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES