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发明名称
Apparatus for measuring resistance at the end of a long cable
摘要
申请公布号
US3273396(A)
申请公布日期
1966.09.20
申请号
US19630306063
申请日期
1963.09.03
申请人
CANADIAN PATENTS AND DEVELOPMENT LIMITED
发明人
BECK ALAN E.
分类号
E21B47/06;G01K7/20
主分类号
E21B47/06
代理机构
代理人
主权项
地址
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