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发明名称
Dämpfereinrichtung in der Stromwendezone von Gleichstromaschinen.
摘要
申请公布号
AT119715(B)
申请公布日期
1930.11.10
申请号
ATD119715
申请日期
1928.08.24
申请人
SIEMENS-SCHUCKERTWERKE AKTIENGESELLSCHAFT
发明人
CARL TRETTIN
分类号
主分类号
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