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发明名称
Signaling system for elevators
摘要
申请公布号
US1848366(A)
申请公布日期
1932.03.08
申请号
US19280287799
申请日期
1928.06.23
申请人
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
发明人
LEWIS FRANK E.
分类号
B66B1/18
主分类号
B66B1/18
代理机构
代理人
主权项
地址
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