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发明名称
KEY MATRIX SWITCHING CIRCUIT
摘要
申请公布号
JPS6461813(A)
申请公布日期
1989.03.08
申请号
JP19870219405
申请日期
1987.09.01
申请人
NEC CORP
发明人
ENOMOTO TOSHIO
分类号
G06F3/023;H03M11/20
主分类号
G06F3/023
代理机构
代理人
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