TREA

SERNI LIMITED

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  • PORT ST. MARY, IM
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Patents Grantslast 30 patents

  • Information Patent Grant

    Conveyor-belt reeling devices
    • Patent number 4,735,373
    • Issue date Apr 5, 1988
    • Serni Limited
    • Jan Wozniak
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Shoring supports
    • Patent number 4,464,084
    • Issue date Aug 7, 1984
    • Serni Limited
    • Jan C. Wozniak
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Rail sleepers with rail clamping devices
    • Patent number 4,448,349
    • Issue date May 15, 1984
    • Serni Limited
    • Jan C. Wozniak
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

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