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Year of Publication 03.10.1995
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AUTOMATIC FORMING METHOD FOR CRUSHED STONE DRAIN PILE AND DEVICE THEREFOR
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Year of Publication 16.05.1995
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Method for automatically driving gravel drain piles and execution apparatus therefor
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Year of Publication 26.10.1993
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ICHIKAWA HARUO, IKEDA RENTARO, KOIKE TADAO, OKITA KOJI, NAKAJIMA YUTAKA, ITO KATSUHIKO
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Year of Publication 29.08.1991
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Year of Publication 28.08.1987
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