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发明名称
IMPEDANCE SWITCHING CIRCUIT
摘要
申请公布号
GB2189116(A)
申请公布日期
1987.10.14
申请号
GB19870002076
申请日期
1987.01.30
申请人
* MITEL CORPORATION
发明人
PIERRE J * SCHINGH
分类号
H03K17/00;H04B1/58;H04M1/76;(IPC1-7):H04B3/03
主分类号
H03K17/00
代理机构
代理人
主权项
地址
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