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发明名称
Card translator
摘要
申请公布号
US2774821(A)
申请公布日期
1956.12.18
申请号
US19520286374
申请日期
1952.05.06
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
BROWN CLAYTON B.;HAMPTON LEON N.;JR. FELIX A. THIEL,
分类号
G06K21/04
主分类号
G06K21/04
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代理人
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