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Teeth on a tooth
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Patent number 4,776,114
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Issue date Oct 11, 1988
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Charles W. Hemphill
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Digging tooth and holder therefor
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Patent number 4,727,664
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Issue date Mar 1, 1988
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Hemphill Industries, Inc.
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Charles W. Hemphill
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Digging tooth and holder assembly
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Patent number 4,476,642
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Issue date Oct 16, 1984
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Hemphill Industries, Inc.
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Charles W. Hemphill
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Flat bottom bucket and digging teeth
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Patent number 4,449,309
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Issue date May 22, 1984
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G. H. Hensley Industries, Inc.
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Charles W. Hemphill
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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