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发明名称
Improvements in or relating to the coding and decoding of messages
摘要
申请公布号
GB324734(A)
申请公布日期
1930.02.06
申请号
GB19280033117
申请日期
1928.11.12
申请人
JOHN GEORGE HOLTZAPFFEL BUDD
发明人
分类号
G09C3/00
主分类号
G09C3/00
代理机构
代理人
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