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发明名称
Dispositif de transposition de codes
摘要
申请公布号
FR1179899(A)
申请公布日期
1959.05.28
申请号
FRD1179899
申请日期
1957.03.28
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
分类号
G06F11/00;G06F11/16;G06K13/18
主分类号
G06F11/00
代理机构
代理人
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