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经营范围
发明名称
Improvements in window sashes
摘要
申请公布号
GB676610(A)
申请公布日期
1952.07.30
申请号
GB19510004497
申请日期
1951.02.23
申请人
ERIC SIGFRID PERSSON
发明人
分类号
E06B3/08
主分类号
E06B3/08
代理机构
代理人
主权项
地址
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