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发明名称
Perfectionnements aux relais
摘要
申请公布号
FR848224(A)
申请公布日期
1939.10.25
申请号
FRD848224
申请日期
1938.12.31
申请人
COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ
发明人
分类号
H02H1/00
主分类号
H02H1/00
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