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Column structure and base member
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Patent number 9,399,868
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Issue date Jul 26, 2016
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SENQCIA CORPORATION
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Hidenori Tanaka
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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1899346
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Patent number 1,899,346
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Issue date Feb 28, 1933
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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1823965
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Patent number 1,823,965
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Issue date Sep 22, 1931
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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1619642
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Patent number 1,619,642
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Issue date Mar 1, 1927
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING