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经营范围
发明名称
Protective headgear
摘要
申请公布号
US2365656(A)
申请公布日期
1944.12.19
申请号
US19430473733
申请日期
1943.01.27
申请人
LAMSA GEORGE M
发明人
LAMSA GEORGE M.
分类号
A42B1/04
主分类号
A42B1/04
代理机构
代理人
主权项
地址
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