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发明名称
Improvements relating to code telegraphy
摘要
申请公布号
GB637451(A)
申请公布日期
1950.05.17
申请号
GB19470012382
申请日期
1947.05.07
申请人
CABLE AND WIRELESS LIMITED;HARRY VERNON HIGGITT
发明人
分类号
H03M5/00
主分类号
H03M5/00
代理机构
代理人
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