US2921603A
|
|
Double ported poppet valve
|
US2896660A
|
|
Automatic pressure regulating valve
|
US1528074A
|
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Pressure regulator
|
US1228104A
|
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Valve.
|
US1110320A
|
|
Gas relief-valve.
|
US1123270A
|
|
Feed-water regulator.
|
US1123864A
|
|
Feed-water regulator.
|
US1131690A
|
|
Feed-water regulator.
|
US959334A
|
|
Feed-water regulator.
|
US900275A
|
|
Fluid-pressure regulator.
|
US863528A
|
|
Fluid-pressure regulator.
|
US845708A
|
|
Fluid-pressure regulator.
|
US834795A
|
|
Feed-water regulator.
|
US788352A
|
|
Fluid-pressure regulator.
|
US816455A
|
|
Diaphragm for controlling valves.
|
US726155A
|
|
Steam-trap.
|
US738608A
|
|
Steam-reducing valve.
|
US717383A
|
|
Pump-governor.
|
US662489A
|
|
Steam-trap.
|
US662488A
|
|
Water-regulator.
|