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经营范围
发明名称
PIANO-KEY SWITCH
摘要
申请公布号
SU620228(A3)
申请公布日期
1978.08.15
申请号
SU19742043559
申请日期
1974.07.04
申请人
TEKSAS INSTR INKORPOREJTED, (´ôPMA)
发明人
GENRI DZHOZEF BULANGER,US
分类号
G06F3/02;H01H13/12;H01H13/14;H01H13/70;(IPC1-7):H01H13/14
主分类号
G06F3/02
代理机构
代理人
主权项
地址
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