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2221273
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Information
Patent Grant
2221273
References
Source
Patent Number
2,221,273
Date Filed
Not available
Date Issued
Tuesday, November 12, 1940
84 years ago
CPC
C02F1/686 - Devices for dosing liquid additives
C02F1/687 - Devices for dosing solid compounds
Y10T137/2519 - Movable trap chamber
US Classifications
137 - Fluid handling
222 - Dispensing
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