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发明名称
MODEM DEVICE WITH BACK-UP SWITCHING FUNCTION
摘要
申请公布号
JPS6419860(A)
申请公布日期
1989.01.23
申请号
JP19870174734
申请日期
1987.07.15
申请人
TOSHIBA CORP
发明人
IWANO TAKASHI
分类号
H04M11/00
主分类号
H04M11/00
代理机构
代理人
主权项
地址
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