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发明名称
METHOD AND DEVICE FOR PRODUCING A SINTERED METAL BLANK WITH INTERIOR HELICAL RECESSES
摘要
申请公布号
EP1230046(A2)
申请公布日期
2002.08.14
申请号
EP20000962433
申请日期
2000.09.02
申请人
FRIEDRICHS, ARNO
发明人
FRIEDRICHS, ARNO
分类号
B21C23/01;B21K5/04;B22F3/02;B22F3/20;B22F5/10;B23B51/06;B23P15/32;(IPC1-7):B21C23/00
主分类号
B21C23/01
代理机构
代理人
主权项
地址
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