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经营范围
发明名称
Electromagnetic relay for controlling electric circuits
摘要
申请公布号
US1773649(A)
申请公布日期
1930.08.19
申请号
US19280291954
申请日期
1928.07.11
申请人
SOCIETE ANONYME FRANCAISE DITE: SOCIETE NOUVELLE DE CONSTRUCTIONS TELEPHONIQUES BREVETS TCHOUBRITCH-DERVAL
发明人
TCHOUBRITCH MICHEL
分类号
H01H50/54;H01H51/06
主分类号
H01H50/54
代理机构
代理人
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地址
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