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发明名称
摘要
申请公布号
JPS5222847(Y2)
申请公布日期
1977.05.25
申请号
JP19710064392U
申请日期
1971.07.20
申请人
发明人
分类号
E04H9/02;E04B1/98;E04B2/56;E04B2/64;(IPC1-7):E04H9/02
主分类号
E04H9/02
代理机构
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