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JPS54140285A
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Circularly cutting device
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JPS54139115A
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Water seal ring for pipe joint
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JPS54460A
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Method of forming human hole via precast concrete tube
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JPS5365317A
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Method of making concrete pipe using centrifugal force
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JPS5364223A
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Method of making concrete pipe using centrifugal force
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JPS5355636A
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Method of preventing ditch from being made by water erosion along embankment etc*
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JPS5354220A
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Method of producing box culverts
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JPS5354221A
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Method of producing box culverts
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JPS5331720A
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Process for production of composite concrete pipe having steel pipe within
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JPS52134205A
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Steellpipe reinforced casttin place pile
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JPS52134206A
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Method of connecting preecast foundation well and stud portion
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JPS52111921A
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Production method of cured object made of concrete slurry
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JPS5280515A
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Connecting arrangement of concrete pipe
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JPS5253524A
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Hume concrete pipe reinforced with metalic fibers
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JPS5252448A
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Construction method of bridge under water
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JPS5246517A
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Arranging method of prestressed concrete bars for pc box culverts
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JPS5239716A
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Method of reducing discharge of sludge in slurry in cemtrifugal compaction of cement
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JPS5226853A
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Automatic recording method for driven length of pile
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JPS529911A
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Method of reinforcing foundation for existing construction
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JPS529916A
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Foundation construction of pipe body to be buried
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