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经营范围
发明名称
Improved apparatus for measuring punchthrough voltage or a related quantity
摘要
申请公布号
US2906958(A)
申请公布日期
1959.09.29
申请号
US19570679336
申请日期
1957.08.21
申请人
PHILCO CORPORATION
发明人
KEHLER RUSSELL D.;TOPFER ALVIN R.
分类号
G01R31/26
主分类号
G01R31/26
代理机构
代理人
主权项
地址
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