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发明名称
Hardware for overhead doors
摘要
申请公布号
US2441742(A)
申请公布日期
1948.05.18
申请号
US19450632381
申请日期
1945.12.03
申请人
WREAD OVERHEAD DOOR CO.
发明人
WREAD WILLIAM E.
分类号
E05D15/40
主分类号
E05D15/40
代理机构
代理人
主权项
地址
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