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发明名称
摘要
申请公布号
DE2034924(A1)
申请公布日期
1971.02.04
申请号
DE19702034924
申请日期
1970.07.14
申请人
发明人
分类号
B24B37/04;B24B37/08;(IPC1-7):B24B7/00
主分类号
B24B37/04
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代理人
主权项
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