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发明名称
ELEVATOR SAFETY DEVICE
摘要
申请公布号
CA340229(A)
申请公布日期
1934.03.20
申请号
CAD340229
申请日期
申请人
THE CANADIAN WESTINGHOUSE COMPANY
发明人
JAMES DUNLOP
分类号
主分类号
代理机构
代理人
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地址
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