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2818818
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Information
Patent Grant
2818818
References
Source
Patent Number
2,818,818
Date Filed
Not available
Date Issued
Tuesday, January 7, 1958
66 years ago
CPC
F04B53/04 - Draining
F04B47/005 - Sand trap arrangements
F04B49/06 - Control using electricity
US Classifications
166 - Wells
092 - Expansible chamber devices
210 - Liquid purification or separation
417 - Pumps
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