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Precast, modular spar system
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Patent number 6,244,785
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Issue date Jun 12, 2001
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H. B. Zachry Company
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Kirk T. Richter
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Repetitive combustion coating apparatus
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Patent number 4,469,722
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Issue date Sep 4, 1984
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H. B. Zachry Company
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Glen Danielson
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B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
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Dual rock cutter wheel trencher
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Patent number 4,230,372
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Issue date Oct 28, 1980
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H. B. Zachry Company
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Edward N. Marten
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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