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发明名称
摘要
申请公布号
JPH0490816(U)
申请公布日期
1992.08.07
申请号
JP19900400877U
申请日期
1990.12.18
申请人
发明人
分类号
F24F13/20;G10K11/16;G10K11/172;(IPC1-7):F24F1/00
主分类号
F24F13/20
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代理人
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