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发明名称
摘要
申请公布号
JP2505982(Y2)
申请公布日期
1996.08.07
申请号
JP19890128137U
申请日期
1989.11.01
申请人
发明人
分类号
E04F13/21;E04F13/08;F24D19/02;F24F1/00;(IPC1-7):E04F13/08
主分类号
E04F13/21
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