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经营范围
发明名称
Improvements in or relating to sequentially operating circuit arrangements suitable for use for sequential switching
摘要
申请公布号
GB504680(A)
申请公布日期
1939.04.28
申请号
GB19380015939
申请日期
1938.05.27
申请人
MARCONI'S WIRELESS TELEGRAPH COMPANY, LIMITED
发明人
分类号
H04J3/04
主分类号
H04J3/04
代理机构
代理人
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