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  • TRANSVAAL PROVINCE REPUBLIC OF, ZA
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Measuring flask
    • Patent number 5,713,715
    • Issue date Feb 3, 1998
    • Rotaque (Proprietary) Limited
    • Robert Montaque Joubert
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Discharge hopper
    • Patent number 5,448,954
    • Issue date Sep 12, 1995
    • Rotaque (Proprietary) Limited
    • Robert M. Joubert
    • B61 - RAILWAYS
  • Information Patent Grant

    Skip
    • Patent number 5,122,028
    • Issue date Jun 16, 1992
    • Rotaque (Proprietary) Limited
    • Robert M. Joubert
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Bottom discharge hopper rail car
    • Patent number 4,669,392
    • Issue date Jun 2, 1987
    • Rotaque (Proprietary) Limited
    • Gysbert J. du Plessis
    • B61 - RAILWAYS
  • Information Patent Grant

    Hoppers and bogies
    • Patent number 4,633,785
    • Issue date Jan 6, 1987
    • Rotaque (Proprietary) Limited
    • Gysbert J. du Plessis
    • B61 - RAILWAYS
  • Information Patent Grant

    Bottom discharge hopper structures
    • Patent number 4,550,665
    • Issue date Nov 5, 1985
    • Rotaque (Proprietary) Limited
    • Cornelis Brouwer
    • B61 - RAILWAYS
  • Information Patent Grant

    Bottom discharge hopper rail car
    • Patent number 4,353,312
    • Issue date Oct 12, 1982
    • Rotaque (Proprietary) Limited
    • Cornelis Brouwer
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Pivoted railway hopper car door latch
    • Patent number 4,351,243
    • Issue date Sep 28, 1982
    • Rotaque (Proprietary) Limited
    • Cornelis Brouwer
    • B61 - RAILWAYS
  • Information Patent Grant

    Railway hopper car bogie
    • Patent number 4,337,707
    • Issue date Jul 6, 1982
    • Rotaque (Proprietary) Limited
    • Cornelis Brouwer
    • B61 - RAILWAYS