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发明名称
SAFFTY DEVICE FOR COMMUNICATION
摘要
申请公布号
JPS5510809(A)
申请公布日期
1980.01.25
申请号
JP19780081921
申请日期
1978.07.07
申请人
NIPPON TELEGRAPH & TELEPHONE
发明人
TAGUCHI MORIHIKO;INOUE TOORU;KAIZU RIYOUSUKE
分类号
H02H9/06;H02H3/08;H02H9/02;H04B3/00
主分类号
H02H9/06
代理机构
代理人
主权项
地址
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