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Hydro excavation vacuum apparatus
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Patent number 12,077,936
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Issue date Sep 3, 2024
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Vermeer Manufacturing Company
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Andy Strobel
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B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
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Cutter head with skirt
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Patent number 11,814,813
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Issue date Nov 14, 2023
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IHC Holland IE B.V.
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Edwin Albert Munts
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Cutter head
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Patent number 10,087,601
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Issue date Oct 2, 2018
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IHC Holland IE B.V.
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Roelof Breken
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Gravel-like material removing device
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Patent number 6,843,003
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Issue date Jan 18, 2005
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Toyo Denki Industrial Co., Ltd.
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Toshinobu Araoka
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Underwater mining apparatus
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Patent number 6,178,670
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Issue date Jan 30, 2001
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Rotech Holdings Limited
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Hector Fillipus Alexander Van Drentham Susman
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Dredging apparatus
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Patent number 4,945,661
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Issue date Aug 7, 1990
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UBE Industries, Ltd.
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Kiyoshi Kuioka
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Pneumatic-hydraulic pump dredge
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Patent number 4,307,525
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Issue date Dec 29, 1981
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AMTEC Development Company
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Richard Maloblocki
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3909960
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Patent number 3,909,960
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Issue date Oct 7, 1975
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3856355
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Patent number 3,856,355
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Issue date Dec 24, 1974
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3790213
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Patent number 3,790,213
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Issue date Feb 5, 1974
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3614161
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Patent number 3,614,161
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Issue date Oct 19, 1971
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3389671
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3148464
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2400882
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Patent number 2,400,882
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Issue date May 28, 1946
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2361404
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Patent number 2,361,404
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Issue date Oct 31, 1944
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2308437
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Patent number 2,308,437
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Issue date Jan 12, 1943
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2029858
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Patent number 2,029,858
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Issue date Feb 4, 1936
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2002748
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Patent number 2,002,748
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Issue date May 28, 1935
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING