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发明名称
摘要
申请公布号
JPS56176272(U)
申请公布日期
1981.12.25
申请号
JP19800075679U
申请日期
1980.05.31
申请人
发明人
分类号
E03C1/29;E03C1/28;(IPC1-7):E03C1/28
主分类号
E03C1/29
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