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经营范围
发明名称
MULTIPHASE DIFFERENTIAL-PHASE-MODULATED PCM REPEATER
摘要
申请公布号
US3543162(A)
申请公布日期
1970.11.24
申请号
USD3543162
申请日期
1967.08.08
申请人
BELL TELEPHONE LAB. INC.
发明人
STEWART E. MILLER
分类号
H04L27/20;H04L27/233;(IPC1-7):H04B7/16;H04L27/18
主分类号
H04L27/20
代理机构
代理人
主权项
地址
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