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发明名称
Improvements in safety pins
摘要
申请公布号
GB366794(A)
申请公布日期
1932.02.11
申请号
GB19310009780
申请日期
1931.03.31
申请人
FRANK DANIEL FERRONE
发明人
分类号
A44B9/18
主分类号
A44B9/18
代理机构
代理人
主权项
地址
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