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发明名称
Level control arrangement for telephone substation sets comprising speech and/or receiving amplifiers
摘要
申请公布号
GB961755(A)
申请公布日期
1964.06.24
申请号
GB19620028771
申请日期
1962.07.26
申请人
STANDARD TELEPHONES AND CABLES LIMITED
发明人
分类号
H04M1/76
主分类号
H04M1/76
代理机构
代理人
主权项
地址
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