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发明名称
摘要
申请公布号
JPS5027792(Y1)
申请公布日期
1975.08.18
申请号
JP19700026926U
申请日期
1970.03.19
申请人
发明人
分类号
F16B7/18;E21D11/24;E21D15/50;F16B5/02;(IPC1-7):E21D15/50
主分类号
F16B7/18
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