TREA

Margrif Design Corporation

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  • Destrehan, LA, US
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  • Information Patent Grant

    Open hopper barge unloading system
    • Patent number 5,020,956
    • Issue date Jun 4, 1991
    • Margrif Design Corporation
    • John Marsden
    • B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT

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