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发明名称
Light shield
摘要
申请公布号
US2191937(A)
申请公布日期
1940.02.27
申请号
US19380247894
申请日期
1938.12.27
申请人
FLENTS PRODUCTS CO. INC.
发明人
LOW CLARENCE H.
分类号
A61F9/04
主分类号
A61F9/04
代理机构
代理人
主权项
地址
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