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Automatic trip gate
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Patent number 7,726,907
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Issue date Jun 1, 2010
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C. Thomas McCreedy
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Weir
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Patent number 5,674,029
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Issue date Oct 7, 1997
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UV Waterguard Systems, Inc.
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Martin A. Smith
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Wicket dam and lifting jack
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Patent number 5,433,555
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Issue date Jul 18, 1995
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Nancy Brac de la Perriere
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Louis Parizot
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Barrier for containing floods
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Patent number 4,921,373
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Issue date May 1, 1990
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Robert C. Coffey
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3464210
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Patent number 3,464,210
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Issue date Sep 2, 1969
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3126614
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Patent number 3,126,614
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Issue date Mar 31, 1964
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2318349
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Patent number 2,318,349
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Issue date May 4, 1943
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2178863
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Patent number 2,178,863
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Issue date Nov 7, 1939
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2158205
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Patent number 2,158,205
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Issue date May 16, 1939
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2157671
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Patent number 2,157,671
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Issue date May 9, 1939
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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1995367
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Patent number 1,995,367
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Issue date Mar 26, 1935
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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1992453
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Patent number 1,992,453
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Issue date Feb 26, 1935
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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1990855
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Patent number 1,990,855
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Issue date Feb 12, 1935
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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1961817
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Patent number 1,961,817
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Issue date Jun 5, 1934
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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1901956
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Patent number 1,901,956
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Issue date Mar 21, 1933
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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1852268
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Patent number 1,852,268
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Issue date Apr 5, 1932
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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1809636
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Patent number 1,809,636
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Issue date Jun 9, 1931
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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1797517
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Patent number 1,797,517
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Issue date Mar 24, 1931
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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1696481
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Patent number 1,696,481
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Issue date Dec 25, 1928
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING