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发明名称
摘要
申请公布号
JPS57131933(U)
申请公布日期
1982.08.17
申请号
JP19810018613U
申请日期
1981.02.12
申请人
发明人
分类号
E04F11/02;E04F11/16;(IPC1-7):E04F11/02
主分类号
E04F11/02
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