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发明名称
Detachable button
摘要
申请公布号
US2423535(A)
申请公布日期
1947.07.08
申请号
US19440536626
申请日期
1944.05.20
申请人
CLEVELAND WELTER GROVER
发明人
WELTER GROVER CLEVELAND
分类号
A44B1/32
主分类号
A44B1/32
代理机构
代理人
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