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发明名称
Drivmekanisme til Fremdrivning af Vælgere, især i Telefonanlæg.
摘要
申请公布号
DK56026(C)
申请公布日期
1939.04.11
申请号
DKD56026
申请日期
1937.10.19
申请人
TELEFONAKTIEBOLAGET L. M. ERICSSON
发明人
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主分类号
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