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发明名称
PIPE PROPELLING METHOD
摘要
申请公布号
JPH07113396(A)
申请公布日期
1995.05.02
申请号
JP19930284133
申请日期
1993.10.20
申请人
YAMANAKAGUMI:KK
发明人
NAGASAKA MASATOSHI
分类号
E21D9/06;E21D9/08;(IPC1-7):E21D9/06
主分类号
E21D9/06
代理机构
代理人
主权项
地址
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