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发明名称
摘要
申请公布号
CH280575(A4)
申请公布日期
1977.04.29
申请号
CH19750002805D
申请日期
1975.03.05
申请人
发明人
分类号
D06B11/00;D06B23/06;(IPC1-7):D06B21/00
主分类号
D06B11/00
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