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经营范围
发明名称
Apparatus for timing watches
摘要
申请公布号
US2058616(A)
申请公布日期
1936.10.27
申请号
US19330670267
申请日期
1933.05.10
申请人
ERNST NORRMAN
发明人
NORRMAN ERNST
分类号
G04D7/12
主分类号
G04D7/12
代理机构
代理人
主权项
地址
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