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发明名称
Automatic calibration of direct current operated measuring instruments
摘要
申请公布号
US3313140(A)
申请公布日期
1967.04.11
申请号
US19640422615
申请日期
1964.12.31
申请人
CORNING GLASS WORKS
发明人
TREMENTOZZI FREDERICK J.
分类号
G01R1/28
主分类号
G01R1/28
代理机构
代理人
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地址
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