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发明名称
SERVICESCHALTKREIS FUER NEBENSTELLENTELEFONANLAGEN
摘要
申请公布号
DE3232749(A1)
申请公布日期
1983.03.31
申请号
DE19823232749
申请日期
1982.09.03
申请人
MITEL CORP.
发明人
DOUGLAS BENNING,GORDON;KEITH BLACKHALL,ROBERT;JAMES PASCAS,BRIAN;STANLEY WILKER,PAUL;ALBERT NEATHWAY,GRAHAM
分类号
H04M3/42;H04B3/54;H04M9/02;H04M11/00;H04Q3/58;(IPC1-7):H04M3/42
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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