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发明名称
摘要
申请公布号
JPS5890922(U)
申请公布日期
1983.06.20
申请号
JP19810187415U
申请日期
1981.12.15
申请人
发明人
分类号
F24J2/04;E04D13/00;E04D13/15;E04D13/18;(IPC1-7):E04D13/15;F24J3/02
主分类号
F24J2/04
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代理人
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