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发明名称
Doorframe construction
摘要
申请公布号
US2245351(A)
申请公布日期
1941.06.10
申请号
US19400319825
申请日期
1940.02.20
申请人
MITTLEMAN SAMUEL K
发明人
MITTLEMAN SAMUEL K.
分类号
E06B1/60
主分类号
E06B1/60
代理机构
代理人
主权项
地址
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