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发明名称
SEWAGE TREATMENT SYSTEM
摘要
申请公布号
CA891200(A)
申请公布日期
1972.01.18
申请号
CAD891200
申请日期
申请人
ENVIRONMENTAL SERVICES
发明人
DERALD E. GRIMSHAW
分类号
C02F3/00;C02F3/12;C02F3/26;(IPC1-7):C02F3/00
主分类号
C02F3/00
代理机构
代理人
主权项
地址
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