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发明名称
Flexible button
摘要
申请公布号
US2176545(A)
申请公布日期
1939.10.17
申请号
US19370147582
申请日期
1937.06.10
申请人
THE PATENT BUTTON COMPANY
发明人
PURINTON FORREST G.
分类号
A44B1/44
主分类号
A44B1/44
代理机构
代理人
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