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发明名称
Safety pin
摘要
申请公布号
US2212889(A)
申请公布日期
1940.08.27
申请号
US19390299604
申请日期
1939.10.16
申请人
OSCAR THORESEN
发明人
THORESEN OSCAR
分类号
A44B9/14
主分类号
A44B9/14
代理机构
代理人
主权项
地址
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