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经营范围
发明名称
Protective system
摘要
申请公布号
US1975172(A)
申请公布日期
1934.10.02
申请号
US19320626034
申请日期
1932.07.29
申请人
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
发明人
PARSONS JOHN S.
分类号
H02H7/12
主分类号
H02H7/12
代理机构
代理人
主权项
地址
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