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发明名称
Recording volt-ampere-meter
摘要
申请公布号
US1839608(A)
申请公布日期
1932.01.05
申请号
US19290354305
申请日期
1929.04.11
申请人
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
发明人
SMITH BENJAMIN H.
分类号
G01R13/04
主分类号
G01R13/04
代理机构
代理人
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地址
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