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发明名称
SEWAGE TREATMENT
摘要
申请公布号
CA913020(A)
申请公布日期
1972.10.24
申请号
CAD913020
申请日期
申请人
EARL C. PETERSON
发明人
EARL C. PETERSON
分类号
C02F1/461;C02F3/04;C02F3/28;(IPC1-7):C02F3/04
主分类号
C02F1/461
代理机构
代理人
主权项
地址
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