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发明名称
摘要
申请公布号
DE2229738(C3)
申请公布日期
1980.11.20
申请号
DE19722229738
申请日期
1972.06.19
申请人
MANNESMANN DEMAG AG, 4100 DUISBURG
发明人
SIBLER, GUENTER, 4100 DUISBURG
分类号
B21C23/20;B21C23/21;B21C33/00;B29C47/36;(IPC1-7):B21C23/20
主分类号
B21C23/20
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代理人
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