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经营范围
发明名称
électro-aimant et ses applications
摘要
申请公布号
FR1001562(A)
申请公布日期
1952.02.25
申请号
FRD1001562
申请日期
1946.05.29
申请人
发明人
STU:RTZ EDMOND
分类号
H01H50/24
主分类号
H01H50/24
代理机构
代理人
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