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发明名称
SIGNAL SWITCH
摘要
申请公布号
JPS5462717(A)
申请公布日期
1979.05.21
申请号
JP19770128675
申请日期
1977.10.28
申请人
NIPPON ELECTRIC CO
发明人
KOYAMA KAORU;MOTOJIMA TOSHIHARU
分类号
H04B1/74;H01H47/00;H04B7/00
主分类号
H04B1/74
代理机构
代理人
主权项
地址
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