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经营范围
发明名称
électro-aimant multipolaire à surface plane
摘要
申请公布号
FR57699(E)
申请公布日期
1953.05.04
申请号
FRD57699
申请日期
1947.10.03
申请人
发明人
BILLAUDEAU EUGENE
分类号
B23Q3/154
主分类号
B23Q3/154
代理机构
代理人
主权项
地址
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