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经营范围
发明名称
摘要
申请公布号
JPS52123325(U)
申请公布日期
1977.09.20
申请号
JP19760032007U
申请日期
1976.03.16
申请人
发明人
分类号
E04D13/072;(IPC1-7):E04D13/06
主分类号
E04D13/072
代理机构
代理人
主权项
地址
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