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发明名称
CIPHER CIRCUIT
摘要
申请公布号
CA497424(A)
申请公布日期
1953.11.03
申请号
CAD497424
申请日期
申请人
NEWSFAX (CANADA) LIMITED
发明人
JOHN W. SMITH
分类号
主分类号
代理机构
代理人
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