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发明名称
Improvements relating to window blinds
摘要
申请公布号
GB382977(A)
申请公布日期
1932.11.10
申请号
GB19310023874
申请日期
1931.08.25
申请人
JAMES CLARKE BATKIN
发明人
分类号
E06B9/50
主分类号
E06B9/50
代理机构
代理人
主权项
地址
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