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Open cut mining apparatus
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Patent number 5,409,298
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Issue date Apr 25, 1995
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BHP Australia Coal Limited
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Alan W. Dickerson
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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High-lead yarder rake
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Patent number 4,411,080
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Issue date Oct 25, 1983
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Donald B. Mann
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Apparatus for treating sumps
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Patent number 4,184,958
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Issue date Jan 22, 1980
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Frank Manchak
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B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
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3774686
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Patent number 3,774,686
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Issue date Nov 27, 1973
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3475839
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Issue date Nov 4, 1969
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3276152
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Patent number 3,276,152
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Issue date Oct 4, 1966
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3210870
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Patent number 3,210,870
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Issue date Oct 12, 1965
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3153476
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Patent number 3,153,476
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Issue date Oct 20, 1964
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2981014
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Patent number 2,981,014
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Issue date Apr 25, 1961
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2892606
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Patent number 2,892,606
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Issue date Jun 30, 1959
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2846789
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Patent number 2,846,789
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Issue date Aug 12, 1958
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2832482
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Patent number 2,832,482
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Issue date Apr 29, 1958
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2831274
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Patent number 2,831,274
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Issue date Apr 22, 1958
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2641372
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2634521
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2588657
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2552743
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Patent number 2,552,743
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Issue date May 15, 1951
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING