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经营范围
发明名称
Closure operating mechanism
摘要
申请公布号
US1911818(A)
申请公布日期
1933.05.30
申请号
US19320614071
申请日期
1932.05.28
申请人
OTIS ELEVATOR COMPANY
发明人
DUNN EDWARD LEE
分类号
B66B13/12
主分类号
B66B13/12
代理机构
代理人
主权项
地址
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