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发明名称
摘要
申请公布号
JPH0616605(U)
申请公布日期
1994.03.04
申请号
JP19920054018U
申请日期
1992.07.31
申请人
发明人
分类号
E04G7/30;E04G7/16;E04G7/20;E04G7/22;(IPC1-7):E04G7/20
主分类号
E04G7/30
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