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经营范围
发明名称
Apparatus for timing clocks and watches
摘要
申请公布号
US1793333(A)
申请公布日期
1931.02.17
申请号
US19250047271
申请日期
1925.07.31
申请人
WESTERN CLOCK COMPANY
发明人
MAIER ERICH
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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