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发明名称
Luminous indicator
摘要
申请公布号
US2072439(A)
申请公布日期
1937.03.02
申请号
US19360073885
申请日期
1936.04.11
申请人
OTIS ELEVATOR COMPANY
发明人
ANDRES CHARLES MICHAEL
分类号
B66B3/00
主分类号
B66B3/00
代理机构
代理人
主权项
地址
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