TREA

Silkbell Limited

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  • Hong Kong, HK
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Patents Grantslast 30 patents

  • Information Patent Grant

    Emitter tube for irrigation system
    • Patent number 7,140,557
    • Issue date Nov 28, 2006
    • Silkbell Limited
    • Christoffel Theron
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Sprinkling device
    • Patent number 4,915,312
    • Issue date Apr 10, 1990
    • Silkbell Ltd.
    • Lourens A. V. Hiemstra
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Flow regulating device
    • Patent number 4,856,552
    • Issue date Aug 15, 1989
    • Silkbell Limited
    • Lourens A. V. Hiemstra
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

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