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发明名称
Process of making depolarizers
摘要
申请公布号
US1884554(A)
申请公布日期
1932.10.25
申请号
US19270199079
申请日期
1927.06.15
申请人
NATIONAL CARBON COMPANY, INC.
发明人
BRIGGS ARTHUR J.
分类号
H01M4/10
主分类号
H01M4/10
代理机构
代理人
主权项
地址
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