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发明名称
摘要
申请公布号
JPH0323472(Y2)
申请公布日期
1991.05.22
申请号
JP19840065359U
申请日期
1984.04.28
申请人
发明人
分类号
E04F13/12;E04B1/62;E04B1/64;(IPC1-7):E04F13/12
主分类号
E04F13/12
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代理人
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