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发明名称
PENETRATION TRENCH AND CONSTRUCTION THEREOF
摘要
申请公布号
JPS59150840(A)
申请公布日期
1984.08.29
申请号
JP19830021726
申请日期
1983.02.14
申请人
HANEDA HIYUUMU KAN KK
发明人
SHIBATA TETSUYASU;SENBA FUJIO;FUKIYA ICHIROU
分类号
E03F1/00
主分类号
E03F1/00
代理机构
代理人
主权项
地址
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