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发明名称
Improvements in or relating to automatic or semi-automatic telephone systems
摘要
申请公布号
GB479895(A)
申请公布日期
1938.02.11
申请号
GB19370030616
申请日期
1936.08.11
申请人
AUTOMATIC ELECTRIC COMPANY LIMITED;CHARLES GILLINGS;REGINALD TAYLOR;GEORGE THOMAS BAKER
发明人
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
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