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发明名称
Safety pin
摘要
申请公布号
US1769477(A)
申请公布日期
1930.07.01
申请号
US19290375901
申请日期
1929.07.05
申请人
THOMPSON LE ROY J
发明人
THOMPSON LE ROY J.
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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