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发明名称
Electrical measuring instrument
摘要
申请公布号
US2470644(A)
申请公布日期
1949.05.17
申请号
US19460710782
申请日期
1946.11.19
申请人
CECIL REDMAN JOHN
发明人
REDMAN JOHN CECIL
分类号
G01R15/12
主分类号
G01R15/12
代理机构
代理人
主权项
地址
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