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发明名称
摘要
申请公布号
JPS57139079(U)
申请公布日期
1982.08.31
申请号
JP19810021554U
申请日期
1981.02.18
申请人
发明人
分类号
F28D15/02;F28D15/00;(IPC1-7):F28D15/00
主分类号
F28D15/02
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