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发明名称
摘要
申请公布号
JPH0262043(U)
申请公布日期
1990.05.09
申请号
JP19880142995U
申请日期
1988.10.31
申请人
发明人
分类号
E04G21/16;(IPC1-7):E04G21/16
主分类号
E04G21/16
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