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经营范围
发明名称
Framed screen
摘要
申请公布号
US2325500(A)
申请公布日期
1943.07.27
申请号
US19420440591
申请日期
1942.04.27
申请人
WATSON MANUFACTURING COMPANY, INC.
发明人
FOSBERG HENRY C.
分类号
E06B9/52
主分类号
E06B9/52
代理机构
代理人
主权项
地址
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