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发明名称
Improvements relating to automatic telephone systems
摘要
申请公布号
GB890109(A)
申请公布日期
1962.02.28
申请号
GB19590035182
申请日期
1959.10.16
申请人
ERICSSON TELEPHONES LIMITED
发明人
TRUEMAN ROY;WARSOP COLIN
分类号
H03K3/45;H04Q3/42
主分类号
H03K3/45
代理机构
代理人
主权项
地址
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