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发明名称
?mbre de précipitation électrostatique
摘要
申请公布号
FR679675(A)
申请公布日期
1930.04.16
申请号
FRD679675
申请日期
1929.08.01
申请人
NATIONAL CARBON COMPANY INC.
发明人
分类号
B03C3/60
主分类号
B03C3/60
代理机构
代理人
主权项
地址
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