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发明名称
PIPE BURYING PROPULSION CONSTRUCTION METHOD AND DEVICE
摘要
申请公布号
JPS6383397(A)
申请公布日期
1988.04.14
申请号
JP19860229273
申请日期
1986.09.26
申请人
OTANI SANGYO KK;SANTETSUKU:KK
发明人
OTANI MASAO;NAKAYAMA KANAME
分类号
E21D9/06
主分类号
E21D9/06
代理机构
代理人
主权项
地址
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