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发明名称
COMPUTER DEVICE
摘要
申请公布号
JPH02250459(A)
申请公布日期
1990.10.08
申请号
JP19890073253
申请日期
1989.03.23
申请人
NEC FIELD SERVICE LTD
发明人
WAKATSUKI KOICHI
分类号
H04M3/42;H04M3/533
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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