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发明名称
WASTE WATER TREATMENT
摘要
申请公布号
US3575853(A)
申请公布日期
1971.04.20
申请号
USD3575853
申请日期
1968.12.24
申请人
LABORATORIES BETZ INC.
发明人
PHILIP J. GAUGHAN;JAMES K. BROWN;CHARLES A. NOLL
分类号
C02F1/70;C02F9/00;(IPC1-7):C02C5/02
主分类号
C02F1/70
代理机构
代理人
主权项
地址
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