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发明名称
PLUG CHANGER FOR PLUG MILL
摘要
申请公布号
GB1559487(A)
申请公布日期
1980.01.23
申请号
GB19760050631
申请日期
1976.12.03
申请人
AETNA STANDARD ENG CO
发明人
分类号
B21B25/06;(IPC1-7):B21B25/02
主分类号
B21B25/06
代理机构
代理人
主权项
地址
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