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发明名称
Door operating mechanism
摘要
申请公布号
US1932198(A)
申请公布日期
1933.10.24
申请号
US19300502364
申请日期
1930.12.15
申请人
SECURITY FIRE DOOR COMPANY
发明人
TALEN MAURITZ W.
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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