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Class Information
Number: 137/222
Name: Fluid handling > Larner-johnson type valves; i.e., telescoping internal valve in expanded flow line section > Internal servo-motor with internal pilot valve > Pilot controlled passage in nose or needle
Description: Flow control devices in which the pilot valve controls a passage through the needle or movable part of the valve means internal to the flow line.










Patents under this class:

Patent Number Title Of Patent Date Issued
6164332 In-line magnetic water manufacturing apparatus Dec. 26, 2000
4091865 Air-pressurized, safety anti-freeze tank May. 30, 1978
4008733 Filling valves for pressure fueling devices Feb. 22, 1977
3945393 Regulating valve Mar. 23, 1976











 
 
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