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Spring loaded feeding device
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Patent number 10,550,544
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Issue date Feb 4, 2020
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Edwin A. Erickson
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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Self-propelled rotary excavator
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Patent number 6,336,280
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Issue date Jan 8, 2002
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Mississippi State University
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Norman M. Haigh
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Rotating disk-type ditcher
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Patent number 5,511,326
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Issue date Apr 30, 1996
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Sylvester J. Liebrecht
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Rotary ditcher having ripper blades
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Patent number 5,237,761
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Issue date Aug 24, 1993
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Rotary Ditchers Ltd.
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Gilbert M. Nadeau
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Ditcher method and apparatus
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Patent number 4,736,534
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Issue date Apr 12, 1988
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The Marmon Group, Inc.
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Gordon E. Daniels
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Grave digging machine
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Patent number 4,085,531
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Issue date Apr 25, 1978
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Georges Aubert
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3916543
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Patent number 3,916,543
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Issue date Nov 4, 1975
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3785705
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Patent number 3,785,705
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Issue date Jan 15, 1974
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B28 - WORKING CEMENT, CLAY, OR STONE
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3411225
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Patent number 3,411,225
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Issue date Nov 19, 1968
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3261117
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Patent number 3,261,117
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Issue date Jul 19, 1966
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3168785
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Patent number 3,168,785
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Issue date Feb 9, 1965
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3132430
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Patent number 3,132,430
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Issue date May 12, 1964
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3102349
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Patent number 3,102,349
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Issue date Sep 3, 1963
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3041750
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Patent number 3,041,750
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Issue date Jul 3, 1962
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3021621
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Patent number 3,021,621
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Issue date Feb 20, 1962
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2984023
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Patent number 2,984,023
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Issue date May 16, 1961
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2974735
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Patent number 2,974,735
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Issue date Mar 14, 1961
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2946143
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Patent number 2,946,143
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Issue date Jul 26, 1960
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2923073
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Patent number 2,923,073
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Issue date Feb 2, 1960
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2746180
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Patent number 2,746,180
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Issue date May 22, 1956
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2737734
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Patent number 2,737,734
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Issue date Mar 13, 1956
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING