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发明名称
摘要
申请公布号
JPS4414289(Y1)
申请公布日期
1969.06.17
申请号
JP19650054236U
申请日期
1965.07.02
申请人
发明人
分类号
E04F21/16;(IPC1-7):E04F21/17
主分类号
E04F21/16
代理机构
代理人
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