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发明名称
Method of treating water
摘要
申请公布号
US1890969(A)
申请公布日期
1932.12.13
申请号
US19280325923
申请日期
1928.12.13
申请人
NATIONAL CARBON CO., INC.
发明人
CHANEY NEWCOMB K.
分类号
C02F1/76
主分类号
C02F1/76
代理机构
代理人
主权项
地址
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