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经营范围
发明名称
FREQUENCY CONVERSION SYSTEM
摘要
申请公布号
JPS6373729(A)
申请公布日期
1988.04.04
申请号
JP19860217017
申请日期
1986.09.17
申请人
NEC CORP
发明人
TAKEMOTO SUMIO
分类号
H04J1/04
主分类号
H04J1/04
代理机构
代理人
主权项
地址
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