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Class Information
Number: 417/111
Name: Pumps > One fluid pumped by contact or entrainment with another > Aerated column > Valved gas inlet > Plural serially actuated valves
Description: Apparatus wherein said valve means comprises plural valves mounted at vertically spaced levels along said vertical column, and having common mechanical or electrical actuating means to actuate or permit the actuation of the valves in a particular sequence.
Patents under this class:
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