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发明名称
VERFAHREN UND VORRICHTUNG ZUM HERSTELLLEN EINES WERKSTUECKES, INSBESONDEREE AUS METALL MIT EINER ZYLINDRIISCHEN AUSSENKONTUR UND EINER POLYGONALEN INNENAUSNEHMUNG
摘要
申请公布号
DE2840971(A1)
申请公布日期
1979.06.28
申请号
DE19782840971
申请日期
1978.09.20
申请人
BRAUN ENGINEERING CO.
发明人
W. BRAUN,FREDERICK
分类号
B21C23/03;B21C23/14;B21C23/20;B21C25/00;B21K1/48;B21K5/16;B21K21/16;(IPC1-7):B21K21/14
主分类号
B21C23/03
代理机构
代理人
主权项
地址
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