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发明名称
Balance bridge with regulator for clockwork mechanism
摘要
申请公布号
US2294023(A)
申请公布日期
1942.08.25
申请号
US19390271145
申请日期
1939.05.01
申请人
HENRI COLOMB
发明人
COLOMB HENRI
分类号
G04B31/008
主分类号
G04B31/008
代理机构
代理人
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