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经营范围
发明名称
Automatic telephone systems
摘要
申请公布号
GB967252(A)
申请公布日期
1964.08.19
申请号
GB19600018470
申请日期
1960.05.25
申请人
PYE LIMITED
发明人
DELANOY DONALD BRIAN
分类号
H04Q3/52
主分类号
H04Q3/52
代理机构
代理人
主权项
地址
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