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发明名称
Test meter
摘要
申请公布号
US1976531(A)
申请公布日期
1934.10.09
申请号
US19300492239
申请日期
1930.10.30
申请人
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
发明人
WATTS THOMAS R.
分类号
G01N27/82
主分类号
G01N27/82
代理机构
代理人
主权项
地址
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