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发明名称
Elektrisk drevet magasingrammofon.
摘要
申请公布号
DK69598(C)
申请公布日期
1949.07.18
申请号
DK19440002556
申请日期
1944.09.19
申请人
TELEFUNKEN GESELLSCHAFT FUER DRAHTLOSE TELEGRAPHIE M. B. H.
发明人
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主分类号
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