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发明名称
Suspension unit for overhead swinging doors
摘要
申请公布号
US2546060(A)
申请公布日期
1951.03.20
申请号
US19460642031
申请日期
1946.01.18
申请人
发明人
D'ALFONSO ALEXANDER C.
分类号
E05D15/46
主分类号
E05D15/46
代理机构
代理人
主权项
地址
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