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发明名称
METHOD AND DEVICE FOR DIGGING CONDUIT
摘要
申请公布号
JPS55119827(A)
申请公布日期
1980.09.13
申请号
JP19790027674
申请日期
1979.03.12
申请人
KUMAGAI GUMI CO LTD
发明人
MATSUSHITA IKUJIROU
分类号
E02D17/13;E02F5/02
主分类号
E02D17/13
代理机构
代理人
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地址
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