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发明名称
Appareil de signalisation pour la commande continue des travaux d'usines, d'ateliers, etc.
摘要
申请公布号
FR914946(A)
申请公布日期
1946.10.22
申请号
FRD914946
申请日期
1945.04.25
申请人
发明人
DOWBOR LADISLAS DE
分类号
G07C3/00
主分类号
G07C3/00
代理机构
代理人
主权项
地址
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