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发明名称
Helmet liner
摘要
申请公布号
US3025525(A)
申请公布日期
1962.03.20
申请号
US19580775765
申请日期
1958.11.24
申请人
MINE SAFETY APPLIANCES COMPANY
发明人
LARSON GLEN M.
分类号
A42B3/14
主分类号
A42B3/14
代理机构
代理人
主权项
地址
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