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发明名称
Helmet
摘要
申请公布号
US2610322(A)
申请公布日期
1952.09.16
申请号
US19470738773
申请日期
1947.04.02
申请人
GRAND DALY LE
发明人
DALY LE GRAND
分类号
A42B3/06
主分类号
A42B3/06
代理机构
代理人
主权项
地址
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