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发明名称
Device for grinding helical grooves
摘要
申请公布号
GB653408(A)
申请公布日期
1951.05.16
申请号
GB19480000446
申请日期
1948.01.06
申请人
EDOUARD DUBIED & CIE. SOCIETE ANONYME
发明人
分类号
B23F1/02
主分类号
B23F1/02
代理机构
代理人
主权项
地址
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