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发明名称
Устройство для включения двух спаренных телефонных аппаратов в АТС
摘要
申请公布号
SU88463(A1)
申请公布日期
1950.11.30
申请号
SU19490409749
申请日期
1949.12.30
申请人
ABENE V.A.
发明人
ABENE V.A.
分类号
H04M3/06
主分类号
H04M3/06
代理机构
代理人
主权项
地址
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