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发明名称
PILE DRIVER
摘要
申请公布号
JPH04203021(A)
申请公布日期
1992.07.23
申请号
JP19900333513
申请日期
1990.11.30
申请人
TOKYU CONSTR CO LTD
发明人
MITSUNAGA JUNICHI;KAWAZOE MASAMITSU
分类号
E21B15/00;E02D7/16
主分类号
E21B15/00
代理机构
代理人
主权项
地址
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