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发明名称
摘要
申请公布号
JPH0382716(U)
申请公布日期
1991.08.22
申请号
JP19890145073U
申请日期
1989.12.15
申请人
发明人
分类号
E04B2/56;(IPC1-7):E04B2/56
主分类号
E04B2/56
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代理人
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地址
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