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发明名称
Verfahren und Vorrichtung zur Herstellung von Ringkoerpern
摘要
申请公布号
DE1627671(A1)
申请公布日期
1972.08.10
申请号
DE1967E033808
申请日期
1967.04.17
申请人
FICHET-BAUCHE
发明人
SERRET,ROBERT
分类号
B21C23/14;B21K1/64
主分类号
B21C23/14
代理机构
代理人
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地址
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