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发明名称
摘要
申请公布号
DE2920889(C2)
申请公布日期
1983.06.01
申请号
DE19792920889
申请日期
1979.05.23
申请人
WILHELM HEGENSCHEIDT, GMBH, 5140 ERKELENZ, DE
发明人
BERSTEIN, GARRI, 5140 ERKELENZ, DE
分类号
B24B39/00;B24B39/02;(IPC1-7):B24B39/00
主分类号
B24B39/00
代理机构
代理人
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