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Retaining wall system
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Patent number 6,854,220
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Issue date Feb 15, 2005
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Pacific Precast Products Ltd.
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Vernon John Dueck
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Retaining wall system
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Patent number 6,490,837
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Issue date Dec 10, 2002
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Pacific Precast Products Ltd.
-
Vernon John Dueck
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Garden block
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Patent number 5,941,042
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Issue date Aug 24, 1999
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Pacific Precast Products Ltd.
-
Vernon J. Dueck
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E04 - BUILDING
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Retaining wall block
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Patent number 5,505,034
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Issue date Apr 9, 1996
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Pacific Pre-Cast Products, Ltd.
-
Vernon J. Dueck
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING