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发明名称
Improvements in or relating to windows and the like
摘要
申请公布号
GB616919(A)
申请公布日期
1949.01.28
申请号
GB19460028309
申请日期
1946.09.20
申请人
BECKETT, LAYCOCK & WATKINSON LIMITED;HERBERT CHAPPELLE
发明人
分类号
E06B3/12
主分类号
E06B3/12
代理机构
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