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发明名称
摘要
申请公布号
JPS4331964(Y1)
申请公布日期
1968.12.25
申请号
JP19650038447U
申请日期
1965.05.12
申请人
发明人
分类号
E02D7/14;(IPC1-7):E02D7/14
主分类号
E02D7/14
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代理人
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