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Wilhelm H. Kuhlmann-Schafer

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  • Hannover, DT
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Patents Grantslast 30 patents

  • Information Patent Grant

    Zone melting process
    • Patent number 3,960,511
    • Issue date Jun 1, 1976
    • Preussag Aktiengesellschaft
    • Wilhelm H. Kuhlmann-Schafer
    • C30 - CRYSTAL GROWTH
  • Information Patent Grant

    Zone melting process
    • Patent number 3,935,058
    • Issue date Jan 27, 1976
    • Preussag Aktiengesellschaft
    • Wilhelm H. Kuhlmann-Schafer
    • C30 - CRYSTAL GROWTH