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发明名称
摘要
申请公布号
JPS4614836(Y1)
申请公布日期
1971.05.25
申请号
JP19670063612U
申请日期
1967.07.19
申请人
发明人
分类号
(IPC1-7):E02B3/14;B28B7/00;E02B3/06;E02D29/02
主分类号
(IPC1-7):E02B3/14
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