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发明名称
Roller screen
摘要
申请公布号
US1840454(A)
申请公布日期
1932.01.12
申请号
US19310558206
申请日期
1931.08.20
申请人
KENNEDY FRANCIS M
发明人
KENNEDY FRANCIS M.
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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