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发明名称
Exchange facility for local battery operated telephone stations
摘要
申请公布号
GB1022898(A)
申请公布日期
1966.03.16
申请号
GB19640028649
申请日期
1964.07.10
申请人
STANDARD TELEPHONES AND CABLES LIMITED
发明人
分类号
H04M3/56;H04M9/00
主分类号
H04M3/56
代理机构
代理人
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