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JPS59134205A
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Structure expansion joint having float preventing apparatus
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JPS5524256A
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Flexible joint of under ground pipings
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JPS54154825A
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Flexible coupling for underground piping
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JPS53107126A
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Method of adjusting height of road expansion seam packing
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JPS5396214A
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Method of making expansion water stop joint for underground continuous wall
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JPS52151883A
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Device for opening and closing pit cover by mobil machine
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JPS5270147A
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Manufacture of rubber rope with clasp or the like
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JPS5268737A
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Protective device for submarine structure
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JPS5264133A
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Protective device for submarine structure
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JPS528632A
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Shear elastic deformation control system slide supporting device
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JPS51112006A
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Method for producing tie pads of complicated band shape for crane rail s
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