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经营范围
发明名称
Improvements in or relating to automatic telephone systems
摘要
申请公布号
GB441644(A)
申请公布日期
1936.01.23
申请号
GB19340029338
申请日期
1934.10.13
申请人
THE GENERAL ELECTRIC COMPANY LIMITED;BENJAMIN FRANCIS MOSS
发明人
分类号
H04M7/10;H04Q3/00
主分类号
H04M7/10
代理机构
代理人
主权项
地址
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