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3172581
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Information
Patent Grant
3172581
References
Source
Patent Number
3,172,581
Date Filed
Not available
Date Issued
Tuesday, March 9, 1965
59 years ago
CPC
B67D7/062 - from the free surface level of the liquid
B65D88/54 - characterised by means facilitating filling or emptying
F04B53/1037 - Flap valves
US Classifications
222 - Dispensing
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