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发明名称
Door-operating device
摘要
申请公布号
US1753272(A)
申请公布日期
1930.04.08
申请号
US19270201902
申请日期
1927.06.27
申请人
AXEL W. BJORKLUND
发明人
KROHN EMIL;LILLQUIST VICTOR A.
分类号
E05F11/04
主分类号
E05F11/04
代理机构
代理人
主权项
地址
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