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发明名称
Door operating device
摘要
申请公布号
US2124349(A)
申请公布日期
1938.07.19
申请号
US19360074501
申请日期
1936.04.15
申请人
GEORGE HERBSTER
发明人
HERBSTER GEORGE
分类号
F24C15/02
主分类号
F24C15/02
代理机构
代理人
主权项
地址
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