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发明名称
Tack button
摘要
申请公布号
US2170091(A)
申请公布日期
1939.08.22
申请号
US19390249135
申请日期
1939.01.03
申请人
THE PATENT BUTTON COMPANY
发明人
PETERSON FREDERICK H.;CLARKE ROLLIN R.
分类号
A44B1/28
主分类号
A44B1/28
代理机构
代理人
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