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经营范围
发明名称
KEY INPUT SYSTEM
摘要
申请公布号
JPS52142925(A)
申请公布日期
1977.11.29
申请号
JP19760060281
申请日期
1976.05.25
申请人
RICOH KK
发明人
KOIDE HIROSHI
分类号
G06F3/023;G06F3/02;H03M11/04;H03M11/22
主分类号
G06F3/023
代理机构
代理人
主权项
地址
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