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发明名称
Timepiece with automatic and manual winding mechanism
摘要
申请公布号
US2620620(A)
申请公布日期
1952.12.09
申请号
US19480039978
申请日期
1948.07.21
申请人
FELSA S. A.
发明人
MEYER FRIEDRICH
分类号
G04B7/00
主分类号
G04B7/00
代理机构
代理人
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