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发明名称
Improvements in or relating to coding and decoding machines
摘要
申请公布号
GB490165(A)
申请公布日期
1938.08.10
申请号
GB19370022889
申请日期
1937.08.20
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
分类号
G09C3/00
主分类号
G09C3/00
代理机构
代理人
主权项
地址
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