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发明名称
Doorway construction
摘要
申请公布号
US2208198(A)
申请公布日期
1940.07.16
申请号
US19390268211
申请日期
1939.04.17
申请人
CURVILINEAR DOORS & WINDOWS, INC.
发明人
SEAMAN DAVID J.
分类号
E06B3/70
主分类号
E06B3/70
代理机构
代理人
主权项
地址
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