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发明名称
Control system for electric elevators
摘要
申请公布号
US1937917(A)
申请公布日期
1933.12.05
申请号
US19320598711
申请日期
1932.03.14
申请人
CUTLER-HAMMER, INC.
发明人
SEEGER EDWIN W.
分类号
B66B1/50
主分类号
B66B1/50
代理机构
代理人
主权项
地址
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