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经营范围
发明名称
Paper hat
摘要
申请公布号
US2682666(A)
申请公布日期
1954.07.06
申请号
US19520269298
申请日期
1952.01.31
申请人
OTTO MAYER
发明人
MAYER OTTO
分类号
A42B1/20
主分类号
A42B1/20
代理机构
代理人
主权项
地址
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