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3701422
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Issue date Oct 31, 1972
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3611594
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Patent number 3,611,594
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Issue date Oct 12, 1971
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3493266
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Patent number 3,493,266
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3396481
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Issue date Aug 13, 1968
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3187915
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3126653
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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1858634
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Issue date May 17, 1932
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING