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发明名称
Perfectionnements aux dispositifs de commande de machines électriques par impulsions sonores
摘要
申请公布号
FR679156(A)
申请公布日期
1930.04.09
申请号
FRD679156
申请日期
1929.06.25
申请人
COMPAGNIE FRANCAISE POUR L'EXPLOITATION DES PROCEDES THOMSON-HOUSTON
发明人
分类号
H02J13/00
主分类号
H02J13/00
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代理人
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