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JPH09118237A
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Car desk box
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JPH0952548A
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Car desk
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JPS61200203A
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Periodic cleaning of road bed ballast
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JPS61126202A
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Activation of jet mud solidified road bed ballast
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JPS6136493A
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Static rapid destruction of rock or concrete
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JPS60141967A
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Static rapid destruction of concrete structure
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JPS60123696A
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High pressure crushing method of rock using expansible crushing material
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JPS6085163A
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Filling of expansible crushing material using crack crushingof rock or concrete structure
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JPS6055169A
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Rapid crushing of concrete structure by using expansible crushing material
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JPS6016618A
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Trenching work for planting greens on slope
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JPS59203161A
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Early stage breaking method by expansible breaking material
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JPS59203118A
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Improvement work of ground
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JPS59170326A
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Greens-planting work on slope
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