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发明名称
VORRICHTUNG ZUM VERHINDERN DES AUSTAUSCHES VON NULLEITERSCHLEIFKOHLEN GEGEN PHASENSCHLEIFKOHLEN BEI FAHRBAREN ELEKTRISCHEN STROMABNEHMERN, Z. B. BEI SCHLEIFLEITUNGEN VON KRANBAHNEN.
摘要
申请公布号
DE1779984(U)
申请公布日期
1958.12.24
申请号
DE195700V8314U
申请日期
1957.12.06
申请人
PAUL VAHLE K.G.
发明人
分类号
主分类号
代理机构
代理人
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