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发明名称
Pointer for electrical measuring instruments
摘要
申请公布号
US1801778(A)
申请公布日期
1931.04.21
申请号
US19290337277
申请日期
1929.02.04
申请人
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
发明人
MACGAHAN PAUL
分类号
G01R1/08
主分类号
G01R1/08
代理机构
代理人
主权项
地址
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