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发明名称
AUTOMATIC LOUDSPEAKER SYSTEM
摘要
申请公布号
RU2033699(C1)
申请公布日期
1995.04.20
申请号
SU19884491237
申请日期
1988.10.10
申请人
GOSUDARSTVENNYJ NAUCHNO-ISSLEDOVATELSKIJ I PROEKTNYJ INSTITUT METALLURGICHESKOJ PROMYSHLENNOSTI "GIPROSTAL"
发明人
ZATUCHNYJ EDUARD SAVVOVICH;LEVINSON MIKHAIL ALEKSANDROVICH
分类号
H04M9/08;(IPC1-7):H04M9/08
主分类号
H04M9/08
代理机构
代理人
主权项
地址
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