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发明名称
THREE KEY PROGRAMMABLE KEYBOARD: EACH KEY CAN TAKE FOUR POSITIONS
摘要
申请公布号
NZ241963(A)
申请公布日期
1995.08.28
申请号
NZ19920241963
申请日期
1992.03.13
申请人
TREADWELL, GRAY COOPER
发明人
TREADWELL, GRAY COOPER
分类号
G06F3/023;H01H13/70;H03M11/06;(IPC1-7):G06F3/023
主分类号
G06F3/023
代理机构
代理人
主权项
地址
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