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发明名称
摘要
申请公布号
JPH02128752(U)
申请公布日期
1990.10.24
申请号
JP19890038125U
申请日期
1989.03.31
申请人
发明人
分类号
E04G17/07;E04G17/00;E04G17/04;E04G17/065;(IPC1-7):E04G17/065
主分类号
E04G17/07
代理机构
代理人
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