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发明名称
Window operator
摘要
申请公布号
US2556695(A)
申请公布日期
1951.06.12
申请号
US19480051170
申请日期
1948.09.25
申请人
NELSON J. EDGE
发明人
JANSEN CHARLES
分类号
E05F17/00
主分类号
E05F17/00
代理机构
代理人
主权项
地址
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