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经营范围
发明名称
摘要
申请公布号
JPS6423507(U)
申请公布日期
1989.02.08
申请号
JP19870116831U
申请日期
1987.07.31
申请人
发明人
分类号
E04B2/56;E04B2/96;(IPC1-7):E04B2/56
主分类号
E04B2/56
代理机构
代理人
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