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发明名称
Improvements relating to telephone system substation circuits
摘要
申请公布号
GB1055162(A)
申请公布日期
1967.01.18
申请号
GB19630004852
申请日期
1963.02.06
申请人
ASSOCIATED ELECTRICAL INDUSTRIES LIMITED
发明人
AGARWAL GOPAL KRISHNA;LANE PETER JOHN
分类号
H04M1/76
主分类号
H04M1/76
代理机构
代理人
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