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发明名称
Method of producing a pivot bearing for watch movements
摘要
申请公布号
US2219067(A)
申请公布日期
1940.10.22
申请号
US19380215023
申请日期
1938.06.21
申请人
HENRI COLOMB
发明人
COLOMB HENRI
分类号
G04B31/06
主分类号
G04B31/06
代理机构
代理人
主权项
地址
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