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发明名称
KEYBOARD INPUT DEVICE
摘要
申请公布号
JPS5534763(A)
申请公布日期
1980.03.11
申请号
JP19780108137
申请日期
1978.09.05
申请人
HITACHI LTD
发明人
IKEDA TETSUYA
分类号
G06F3/02;G06F3/023;H03M11/04;H03M11/22
主分类号
G06F3/02
代理机构
代理人
主权项
地址
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