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经营范围
发明名称
Welder's mask
摘要
申请公布号
US3327318(A)
申请公布日期
1967.06.27
申请号
US19650491516
申请日期
1965.09.30
申请人
AMERICAN OPTICAL COMPANY
发明人
STICKNEY HERBERT F.
分类号
A61F9/06
主分类号
A61F9/06
代理机构
代理人
主权项
地址
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