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发明名称
Improvements in or relating to telegraph systems
摘要
申请公布号
GB376820(A)
申请公布日期
1932.07.18
申请号
GB19310011266
申请日期
1931.04.16
申请人
STANDARD TELEPHONES AND CABLES, LIMITED;SYDNEY HERBERT GROVE;MOURIZIO ENRICO FEDERICI;EDWARD KENNETH SANDEMAN;LAUNCELOT EDGAR CURRAH
发明人
分类号
H04L25/04
主分类号
H04L25/04
代理机构
代理人
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地址
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