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发明名称
Improvements in and relating to wall openings for window and door frames
摘要
申请公布号
GB602018(A)
申请公布日期
1948.05.18
申请号
GB19450025542
申请日期
1945.10.02
申请人
DIRK EVERHARD EVERTS;HENRI VAN MOURIK BROEKMAN
发明人
分类号
E06B3/40
主分类号
E06B3/40
代理机构
代理人
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