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发明名称
Door operating device
摘要
申请公布号
US2619345(A)
申请公布日期
1952.11.25
申请号
US19490078607
申请日期
1949.02.26
申请人
BYRNE DOORS, INC.
发明人
DAVIDSON CHARLES S.
分类号
E05F15/16
主分类号
E05F15/16
代理机构
代理人
主权项
地址
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