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发明名称
摘要
申请公布号
JPH0479151(U)
申请公布日期
1992.07.09
申请号
JP19900123017U
申请日期
1990.11.22
申请人
发明人
分类号
E04H6/02;E04H9/16;F24D3/00;(IPC1-7):E04H6/02
主分类号
E04H6/02
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代理人
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