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经营范围
发明名称
KEY INPUT DEVICE
摘要
申请公布号
JPH0844470(A)
申请公布日期
1996.02.16
申请号
JP19940200234
申请日期
1994.08.02
申请人
RICOH CO LTD
发明人
TAKASHIMA MASAYUKI
分类号
G03G21/16;G06F3/02;(IPC1-7):G06F3/02
主分类号
G03G21/16
代理机构
代理人
主权项
地址
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