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发明名称
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申请公布号
JPH0520806(Y2)
申请公布日期
1993.05.28
申请号
JP19870149590U
申请日期
1987.09.30
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发明人
分类号
E04B1/343;E04H1/12;(IPC1-7):E04B1/343
主分类号
E04B1/343
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