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经营范围
发明名称
CIRCUIT SWITCHING DEVICE
摘要
申请公布号
JPH09168174(A)
申请公布日期
1997.06.24
申请号
JP19960172562
申请日期
1996.07.02
申请人
SUMITOMO ELECTRIC IND LTD
发明人
KATSUKAWA TAMOTSU;YUMOTO NOBUTAKE
分类号
H04M3/42;H04Q3/42;(IPC1-7):H04Q3/42
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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