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经营范围
发明名称
Indicating instrument
摘要
申请公布号
US1959771(A)
申请公布日期
1934.05.22
申请号
US19320591282
申请日期
1932.02.06
申请人
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
发明人
SMITH ROY M.
分类号
G01R13/00
主分类号
G01R13/00
代理机构
代理人
主权项
地址
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