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发明名称
GRINDING WHEEL APPROACHING MECHANISM
摘要
申请公布号
PL114437(B1)
申请公布日期
1981.01.31
申请号
PL19760186984
申请日期
1976.02.02
申请人
发明人
分类号
B21B45/04;B24B47/06;(IPC1-7):B24B47/06
主分类号
B21B45/04
代理机构
代理人
主权项
地址
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