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US5794987A
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Flexible joint for a culvert
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CA2241785A1
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A flexible joint for a culvert
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JPH06320679A
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Hygroscopic wall mounting material
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JPH06300173A
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Coupling for pipe
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Method for constructing joint of covered conduit
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Joint of closed conduit and construction thereof
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Joint of culvert
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Preceding mounting and storing joint seal structure for underwater structure
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Invert repairing framework for existing manhole
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Bonding method for elastomer and binder
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Maintaining device for initial setting state of underwater structure wall surface
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JPH06186409A
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Recurrent reflection sheet
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Joint seal structure and work executing method thereof
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Apparatus for counting number of fishes
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Prevention device for contamination by scouring water bottom sediment at coffering and method thereof
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Method and apparatus for arranging long bag
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Sheet and laying method therefor
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Impervious construction in water filled ground and impervious construction method
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Block joint structure for preventing evacuation of sediment and manufacture thereof
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JPH05104451A
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Simple joining jig and simple joining method for water stop
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