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经营范围
发明名称
KEYBOARD DEVICE
摘要
申请公布号
JPH03164922(A)
申请公布日期
1991.07.16
申请号
JP19890303313
申请日期
1989.11.24
申请人
CANON INC
发明人
MAKINO TSUNEHIRO
分类号
G06F3/02;G06F3/023;H03M11/14
主分类号
G06F3/02
代理机构
代理人
主权项
地址
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