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发明名称
DURCHTRITTSSICHERHEITSSYSTEM MIT EINEM MAGNETISCHEN WECHSELFELD UND EINEM ETIKETT.
摘要
申请公布号
CH667551(A5)
申请公布日期
1988.10.14
申请号
CH19840004123
申请日期
1984.08.28
申请人
SIGMA SECURITY INC.
发明人
MEJIA, EZEQUIEL
分类号
G07F7/08;G08B13/24;(IPC1-7):H01F1/30;H03K17/95
主分类号
G07F7/08
代理机构
代理人
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