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经营范围
发明名称
Reversible helmet
摘要
申请公布号
US1947786(A)
申请公布日期
1934.02.20
申请号
US19310529008
申请日期
1931.04.10
申请人
LUECK HENRY W;DAVIS CHARLES H
发明人
LUECK HENRY W.;DAVIS CHARLES H.
分类号
A42B3/22
主分类号
A42B3/22
代理机构
代理人
主权项
地址
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