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发明名称
Apparatus for detecting and appraising signals on cables
摘要
申请公布号
US3283265(A)
申请公布日期
1966.11.01
申请号
US19650440333
申请日期
1965.03.16
申请人
RINGELHAAN OTMAR E
发明人
RINGELHAAN OTMAR E.
分类号
H03H7/48
主分类号
H03H7/48
代理机构
代理人
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