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发明名称
Устройство для искробезопасной громкоговорящей связи
摘要
申请公布号
SU142694(A1)
申请公布日期
1960.11.30
申请号
SU19590648525
申请日期
1959.12.23
申请人
发明人
BIRENBERG I.E.;ZLOVINSKIJ E.I.;KOZIN L.G.;YANCHUK G.M.;MELKUMOV YU.V.
分类号
H04M1/18
主分类号
H04M1/18
代理机构
代理人
主权项
地址
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