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1969644
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Information
Patent Grant
1969644
References
Source
Patent Number
1,969,644
Date Filed
Not available
Date Issued
Tuesday, August 7, 1934
90 years ago
CPC
B01F3/04241 - Diffusers
C02F3/20 - using diffusers
B01F2003/04319 - being tubes, tubular elements, cylindrical elements, set of tubes
B01F2003/04333 - being axially stacked discs, rings, plates
B01F2003/04361 - Perforations
B01F2003/0439 - Pores
Y02W10/15 - Aerobic processes
Y10S261/70 - Sewage aerators diffusers
US Classifications
261 - Gas and liquid contact apparatus
210 - Liquid purification or separation
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