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经营范围
发明名称
CIRCULATION COMMUNICATION DEVICE
摘要
申请公布号
SU801304(A1)
申请公布日期
1981.01.30
申请号
SU19782670513
申请日期
1978.10.03
申请人
RIZHSKIJ G ELEKTROTEKHNICHESKIJ ZAVOD VEF IM. V.I.LENINA
发明人
OVCHINKIN ALEKSEJ M,SU;FUKS FELIKS A,SU
分类号
H04M3/56;(IPC1-7):H04M3/56
主分类号
H04M3/56
代理机构
代理人
主权项
地址
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