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经营范围
发明名称
Winding stem with removable crown
摘要
申请公布号
US2579340(A)
申请公布日期
1951.12.18
申请号
US19450625042
申请日期
1945.10.27
申请人
WERNER SCHMITZ
发明人
SCHMITZ WERNER
分类号
G04B37/10
主分类号
G04B37/10
代理机构
代理人
主权项
地址
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