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发明名称
Window shade
摘要
申请公布号
US2226131(A)
申请公布日期
1940.12.24
申请号
US19400318503
申请日期
1940.02.12
申请人
WILLI KOFLER
发明人
KOFLER WILLI
分类号
E06B9/54
主分类号
E06B9/54
代理机构
代理人
主权项
地址
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