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Hydraulic equipment
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Patent number 4,323,002
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Issue date Apr 6, 1982
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Fletcher Sutcliffe Wild Limited
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Malcolm Wake
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E21 - EARTH DRILLING MINING
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Mine roof supports
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Patent number 4,139,325
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Issue date Feb 13, 1979
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Fletcher Sutcliffe Wild Limited
-
Lewis R. Bower
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E21 - EARTH DRILLING MINING
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Mine roof supports
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Patent number 4,139,326
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Issue date Feb 13, 1979
-
Fletcher Sutcliffe Wild Limited
-
Lewis R. Bower
-
E21 - EARTH DRILLING MINING
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Mining equipment
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Patent number 4,102,139
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Issue date Jul 25, 1978
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Fletcher Sutcliffe Wild Limited
-
Malcolm Wake
-
E21 - EARTH DRILLING MINING