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发明名称
Improvements in and relating to sash windows
摘要
申请公布号
GB452680(A)
申请公布日期
1936.08.27
申请号
GB19350021214
申请日期
1935.07.25
申请人
GEORGE JAMES EDWARDS
发明人
分类号
E06B3/50
主分类号
E06B3/50
代理机构
代理人
主权项
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