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发明名称
Hat fastener
摘要
申请公布号
US2493908(A)
申请公布日期
1950.01.10
申请号
US19470752082
申请日期
1947.06.03
申请人
BAKER EDNA M
发明人
BAKER EDNA M.
分类号
A42B7/00
主分类号
A42B7/00
代理机构
代理人
主权项
地址
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