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发明名称
ELEVATOR CONTROL SYSTEM
摘要
申请公布号
CA404840(A)
申请公布日期
1942.05.19
申请号
CAD404840
申请日期
申请人
CANADIAN WESTINGHOUSE COMPANY
发明人
ROBERT H. WAGNER
分类号
主分类号
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代理人
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地址
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