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经营范围
发明名称
Electronic switching systems
摘要
申请公布号
GB898844(A)
申请公布日期
1962.06.14
申请号
GB19580041149
申请日期
1958.12.19
申请人
STANDARD TELEPHONES AND CABLES LIMITED
发明人
分类号
H03K17/62;H03K17/81
主分类号
H03K17/62
代理机构
代理人
主权项
地址
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