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发明名称
摘要
申请公布号
JPS6011126(Y2)
申请公布日期
1985.04.13
申请号
JP19800003087U
申请日期
1980.01.17
申请人
发明人
分类号
E01B27/12;E01B27/14;F16F1/42;(IPC1-7):E01B27/12
主分类号
E01B27/12
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