TREA

CLAY CROSS COMPANY LIMITED, THE, A BRITISH COMPANY

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  • DERBYSHIRE S45, NG, GB
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  • Information Patent Grant

    Load-indicating devices
    • Patent number 4,703,711
    • Issue date Nov 3, 1987
    • The Clay Cross Company Limited
    • John M. Haynes
    • E21 - EARTH DRILLING MINING

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