David W. Watkins

Person

  • Nottingham, GB

Patents Grantslast 30 patents

  • Information Patent Grant

    Method and apparatus for calcination

    • Patent number 4,919,613
    • Issue date Apr 24, 1990
    • BPB Industries Public Limited Company
    • David W. Watkins
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES