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发明名称
Watch
摘要
申请公布号
US2053784(A)
申请公布日期
1936.09.08
申请号
US19350024167
申请日期
1935.05.31
申请人
SEIP ERVIN G
发明人
SEIP ERVIN G.
分类号
G04B37/05
主分类号
G04B37/05
代理机构
代理人
主权项
地址
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