Bernhard Wojtech

Person

  • Bad Soden, DT

Patents Grantslast 30 patents

  • Information Patent Grant

    Purification of phosphoric acid

    • Patent number 3,996,336
    • Issue date Dec 7, 1976
    • Hoechst Aktiengesellschaft
    • Bernhard Wojtech
    • C01 - INORGANIC CHEMISTRY