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发明名称
Improvements in window frames
摘要
申请公布号
GB478376(A)
申请公布日期
1938.01.18
申请号
GB19360022554
申请日期
1936.08.17
申请人
HARRIS AND SHELDON LIMITED;JOSEPH SANKEY AND SONS LIMITED;HAROLD GUY BUTLER
发明人
分类号
E06B3/54;E06B3/60
主分类号
E06B3/54
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代理人
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