发明名称 Secret number or password input system for daily use in department stores, shop, branches or offices, has operation of correction function recognized by user for outside observing of user procedure
摘要 <p>The secret number or password input system has an operation of the correction function recognized by the user for outside observing of the user procedure. The correction obtains numerical value or character.</p>
申请公布号 DE102009012011(A1) 申请公布日期 2010.09.09
申请号 DE20091012011 申请日期 2009.03.07
申请人 KAMMHOLZ, MARTIN 发明人 KAMMHOLZ, MARTIN
分类号 G07F9/02;G06K7/01 主分类号 G07F9/02
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