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发明名称
Wechselsprechanlage
摘要
申请公布号
AT246802(B)
申请公布日期
1966.05.10
申请号
AT19640007333
申请日期
1964.08.25
申请人
WIENER SCHWACHSTROMWERKE GESELLSCHAFT M. B. H.
发明人
DIPL. ING. WILHELM RIEDEL
分类号
H04M
主分类号
H04M
代理机构
代理人
主权项
地址
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