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经营范围
发明名称
électrode d'émission ou de charge pour appareils de purification électrique des gaz
摘要
申请公布号
FR777678(A)
申请公布日期
1935.02.26
申请号
FRD777678
申请日期
1934.06.26
申请人
发明人
GREFFENIUS
分类号
B03C3/10;B03C3/36
主分类号
B03C3/10
代理机构
代理人
主权项
地址
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