|
US3037738A
(en)
|
|
Rotor valve
|
|
US3040772A
(en)
|
|
Automatic reset relief valve
|
|
US5375623A
(en)
|
|
Cartridge valve
|
|
US2311110A
(en)
|
|
Valve
|
|
US763208A
(en)
|
|
Stop-valve.
|
|
US3472277A
(en)
|
|
Magnetically interlinked multi-valve assembly
|
|
US2713773A
(en)
|
|
Hydraulic pit prop or jack
|
|
US5483991A
(en)
|
|
Valve with self-centering seat
|
|
US4926908A
(en)
|
|
Pressure relief and vacuum vent valve
|
|
US2984450A
(en)
|
|
Valve seals
|
|
US2713986A
(en)
|
|
Self-aligning poppet valve
|
|
US3148860A
(en)
|
|
Fluid valves
|
|
US2129986A
(en)
|
|
Steam trap
|
|
US122494A
(en)
|
|
Improvement in stop-valves |
|
GB659539A
(en)
|
|
A fluid-pressure cock
|
|
US3403694A
(en)
|
|
Gas lift valve
|
|
DE850367C
(en)
|
|
Valve cone for valves with an annular channel
|
|
AT45650B
(en)
|
|
|