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经营范围
发明名称
Automatisk signaleringsanlæg.
摘要
申请公布号
DK87721(C)
申请公布日期
1959.08.24
申请号
DK19540001681
申请日期
1954.05.22
申请人
STAATSBEDRIJF DER POSTERIJEN, TELEGRAFIE EN TELEFONIE (GENERAL DIRECTION OF THE POSTAL AND TELECOMMUNICATION SERVICES OF THE NETHERLANDS)
发明人
DR. ING. ROELOF MAARTEN MARIE OBERMAN
分类号
H04M;(IPC1-7):H04M
主分类号
H04M
代理机构
代理人
主权项
地址
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