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发明名称
摘要
申请公布号
DD115714(A1)
申请公布日期
1975.10.12
申请号
DD19740177742
申请日期
1974.04.08
申请人
发明人
分类号
D01H5/48;D01H5/50;D01H5/56;(IPC1-7):D01H5/46
主分类号
D01H5/48
代理机构
代理人
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地址
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