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发明名称
摘要
申请公布号
DD111485(A5)
申请公布日期
1975.02.12
申请号
DD19740178397
申请日期
1974.05.09
申请人
发明人
分类号
G10D1/04;(IPC1-7):G10D1/04;G10D3/04
主分类号
G10D1/04
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代理人
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