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经营范围
发明名称
Process for treating sewage
摘要
申请公布号
US2206851(A)
申请公布日期
1940.07.02
申请号
US19360112294
申请日期
1936.11.23
申请人
POTTS
发明人
POTTS CLYDE;WIGLEY CHESTER G.
分类号
C05F7/00
主分类号
C05F7/00
代理机构
代理人
主权项
地址
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