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经营范围
发明名称
Improvements in or relating to coded signal transmitting keyboards
摘要
申请公布号
GB1048607(A)
申请公布日期
1966.11.16
申请号
GB19640028306
申请日期
1964.07.09
申请人
THE MARCONI COMPANY LIMITED
发明人
DOUGLAS FRANK WILLIAM;REED JOHN
分类号
H04L13/16
主分类号
H04L13/16
代理机构
代理人
主权项
地址
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