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发明名称
Protective pilot wire control system
摘要
申请公布号
US2337830(A)
申请公布日期
1943.12.28
申请号
US19420442757
申请日期
1942.05.13
申请人
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
发明人
LONGWELL ROBERT R.
分类号
H02H7/26
主分类号
H02H7/26
代理机构
代理人
主权项
地址
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