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发明名称
CONTROL DEVICE FOR MINOR DIAMETER PIPE PUSHING EXCAVATOR
摘要
申请公布号
JPH03166495(A)
申请公布日期
1991.07.18
申请号
JP19890304740
申请日期
1989.11.27
申请人
MITSUI ENG & SHIPBUILD CO LTD;MITSUI CONSTR CO LTD
发明人
SUGANOYA KIYOAKI;TAKAMOTO KOHEI;UOZUMI MASATAKA;SHIMIZU YASUO
分类号
E21D9/08
主分类号
E21D9/08
代理机构
代理人
主权项
地址
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