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发明名称
Вызывной прибор для избирательного вызова
摘要
申请公布号
SU82995(A1)
申请公布日期
1949.11.30
申请号
SU19490394217
申请日期
1949.03.26
申请人
PARMNEK G.F.
发明人
PARMNEK G.F.
分类号
H04L12/12
主分类号
H04L12/12
代理机构
代理人
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