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发明名称
Window sash
摘要
申请公布号
US1769064(A)
申请公布日期
1930.07.01
申请号
US19280298495
申请日期
1928.08.09
申请人
FREDERICK KLEIN
发明人
KLEIN FREDERICK
分类号
E06B3/50
主分类号
E06B3/50
代理机构
代理人
主权项
地址
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