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经营范围
发明名称
Voltmètre électronique
摘要
申请公布号
FR941293(A)
申请公布日期
1949.01.06
申请号
FRD941293
申请日期
1947.03.18
申请人
COMPAGNIE DES MACHINES BULL
发明人
分类号
G01R19/00
主分类号
G01R19/00
代理机构
代理人
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