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发明名称
摘要
申请公布号
JPS5524308(U)
申请公布日期
1980.02.16
申请号
JP19780105384U
申请日期
1978.07.31
申请人
发明人
分类号
E03D9/00;E03D5/012;(IPC1-7):E03D5/012
主分类号
E03D9/00
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