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Friction index tester
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Patent number 5,319,953
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Issue date Jun 14, 1994
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Noranda Inc.
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Paul Germain
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G01 - MEASURING TESTING
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Cable bolt monitoring device
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Patent number 5,284,107
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Issue date Feb 8, 1994
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Noranda Inc.
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Douglas Milne
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Cable grip
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Patent number 5,233,730
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Issue date Aug 10, 1993
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Noranda, Inc.
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Douglas Milne
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E21 - EARTH DRILLING MINING