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发明名称
Measurement of phase shift
摘要
申请公布号
US2282951(A)
申请公布日期
1942.05.12
申请号
US19380240473
申请日期
1938.11.15
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
ENGELHARDT GEORGE B.
分类号
G01R25/00
主分类号
G01R25/00
代理机构
代理人
主权项
地址
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