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经营范围
发明名称
Improvements in and relating to vertically sliding windows
摘要
申请公布号
GB679047(A)
申请公布日期
1952.09.10
申请号
GB19500008837
申请日期
1950.04.11
申请人
WILLIAM YOUNG
发明人
分类号
E06B3/44
主分类号
E06B3/44
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代理人
主权项
地址
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