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发明名称
Hat retaining device
摘要
申请公布号
US2157835(A)
申请公布日期
1939.05.09
申请号
US19380235552
申请日期
1938.10.18
申请人
SOLOMONS MORTIMER J
发明人
SOLOMONS MORTIMER J.
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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