|
US4536660A
|
|
Flexible means for measuring liquid level
|
|
US4230148A
|
|
Check-valve construction
|
|
US4217814A
|
|
Dual action trip and control valve
|
|
US4164145A
|
|
Self-powered electrical meter for display of a liquid-level or the like measurement
|
|
US4142079A
|
|
Float-level switch with lifting mechanism
|
|
US4166936A
|
|
Viscosity-compensating flow switch
|
|
US4081639A
|
|
Liquid-level float switch construction
|
|
GB1548822A
|
|
Electromechanically actuated valve
|
|
US4060250A
|
|
Rotor seal element with heat resistant alloy coating
|
|
US4055197A
|
|
Electro-proportional pressure control apparatus
|
|
US4039228A
|
|
Tilting pad bearing
|
|
US4081635A
|
|
Electrical switch responsive to a predetermined fluid flow
|
|
US4053137A
|
|
Electromechanically operated valve
|
|
US3999825A
|
|
Tubing coupling with electrical bonding
|
|
US3982087A
|
|
Liquid-level indicating means
|
|
US3980560A
|
|
Filter construction
|
|
US3971218A
|
|
Means for preventing an engine turbocharger from being damaged by foreign objects
|
|
CA994460A
|
|
Automatic engine starting system
|
|
US3861460A
|
|
Condenser construction
|
|
US3826139A
|
|
Liquid level indicating apparatus
|
