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Trench cutting apparatus and method
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Patent number 11,384,506
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Issue date Jul 12, 2022
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ROYAL IHC LIMITED
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Jonathan Ralph Manchester
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Cutterhead debris guard
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Patent number 10,000,905
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Issue date Jun 19, 2018
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Liquid Waste Technology, LLC
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Richard Leverty
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Rotary stone-cutting head
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Patent number 4,461,513
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Issue date Jul 24, 1984
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Berchem & Schaberg GmbH
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Rutger Berchem
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Cutter head for suction dredges
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Patent number 4,319,415
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Issue date Mar 16, 1982
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Vereinigte Edelstahlwerke Aktiengesellschaft
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Gottfried Mayerbock
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Dredge cutter head
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Patent number 4,050,170
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Issue date Sep 27, 1977
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Proehl; Norman P.
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Norman P. Proehl
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3896566
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Patent number 3,896,566
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Issue date Jul 29, 1975
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3823495
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Patent number 3,823,495
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Issue date Jul 16, 1974
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3808716
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Patent number 3,808,716
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Issue date May 7, 1974
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3807066
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Patent number 3,807,066
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Issue date Apr 30, 1974
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3711968
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Patent number 3,711,968
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Issue date Jan 23, 1973
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2233943
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Patent number 2,233,943
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Issue date Mar 4, 1941
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2103124
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Patent number 2,103,124
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Issue date Dec 21, 1937
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2090790
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Patent number 2,090,790
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Issue date Aug 24, 1937
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2040303
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Patent number 2,040,303
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Issue date May 12, 1936
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2039944
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Patent number 2,039,944
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Issue date May 5, 1936
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2029816
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Patent number 2,029,816
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Issue date Feb 4, 1936
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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1559060
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Patent number 1,559,060
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Issue date Oct 27, 1925
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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1477352
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Patent number 1,477,352
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Issue date Dec 11, 1923
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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1316349
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Patent number 1,316,349
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Issue date Sep 16, 1919
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING