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发明名称
Improvements in metal window-frames and windows or casements therefor and the method of manufacturing the same
摘要
申请公布号
GB341418(A)
申请公布日期
1931.01.14
申请号
GB19290031143
申请日期
1929.10.14
申请人
JOSEPH WILSON EVANS
发明人
分类号
E06B3/16
主分类号
E06B3/16
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