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发明名称
ELECTRONIC TOKEN
摘要
申请公布号
GB2191883(A)
申请公布日期
1987.12.23
申请号
GB19870013835
申请日期
1987.06.12
申请人
* SCHLUMBERGER ELECTRONICS
发明人
JOHN EDWARD * VAUGHAN;DAVID ROBERT * SMALE;BERNARD * PATRY;JOHN CLIVE * HEATON
分类号
G07C9/00;G07F7/00;G07F7/08;G07F15/00;(IPC1-7):G07F7/00
主分类号
G07C9/00
代理机构
代理人
主权项
地址
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