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发明名称
Black-out curtain device for doors or similar openings
摘要
申请公布号
US2331295(A)
申请公布日期
1943.10.12
申请号
US19420456982
申请日期
1942.09.02
申请人
BARKER GEORGE A
发明人
BARKER GEORGE A.
分类号
A47H23/01
主分类号
A47H23/01
代理机构
代理人
主权项
地址
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