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发明名称
摘要
申请公布号
JPS4519149(Y1)
申请公布日期
1970.08.04
申请号
JP19650057381U
申请日期
1965.07.12
申请人
发明人
分类号
(IPC1-7):E01C5/16;E01C9/08
主分类号
(IPC1-7):E01C5/16
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