Apparatus to monitor splice impedance and connection polarities including means to provide continuous signal transmission during cable transfer operations
摘要
申请公布号
US3344348(A)
申请公布日期
1967.09.26
申请号
US19640420417
申请日期
1964.12.22
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
JR. IRVING M. MCNAIR,;STRAKHOV NICHOLAS A.;YOUNG CHARLES A.
