Improvements in valves for passing fluids. (Machine-translation by Google Translate, not legally binding)
US4003548A
High-pressure valve with balanced internal components
US4089342A
Dispensing device for respiration apparatus having one or more floating valves operating according to an improved system with pivots free from mechanical connections
US3937088A
Drive mechanism for pressure-gages, comprising a molded plastics main body with embedded bourdon tube
CH559358A5
Bourdon manometer adjusting device - block forced against side of spring to ensure linear expansion
US3863887A
Pneumatically-servocontrolled, instantly-responsive floating valve, particularly adapted for underwater pneumatic guns and other uses
GB1293680A
Improvements in or relating to measuring instruments
US3707089A
Constant ratio calibration and transmission device for movements of bourdon type pressure gages and the like
