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发明名称
摘要
申请公布号
JPS5022344(B1)
申请公布日期
1975.07.30
申请号
JP19680056164
申请日期
1968.08.09
申请人
发明人
分类号
E02D29/05;E21D11/15
主分类号
E02D29/05
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代理人
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地址
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