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GB1141372A
|
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Improved automatic sealant sealed valve
|
|
GB1042540A
|
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Automatic sealing system for fluid flow control valves
|
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GB1018675A
|
|
Fluid sealed sluice valves
|
|
GB891743A
|
|
Gate valve construction
|
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GB856205A
|
|
Automatically lubricant-sealed gate valves
|
|
GB856824A
|
|
Automatically lubricant-sealed gate valves
|
|
GB833015A
|
|
Means for automatically sealing valves and other closure surfaces
|
|
GB817426A
|
|
Stem and stuffing box construction for non-rising stem gate valves
|
|
GB825554A
|
|
Manifold swing gate valve with automatic lubricant sealing
|
|
GB825850A
|
|
Automatic lubricant sealed gate valve
|
|
GB786378A
|
|
Swing gate valve
|
|
GB781211A
|
|
Improvements in lubricant-sealed gate valves
|
|
GB725400A
|
|
Improvements in or relating to plug valves
|
|
GB718324A
|
|
Improvements in lubricated gate valves
|
|
GB719001A
|
|
Smooth opening automatic lubricated gate valve
|
|
GB700848A
|
|
Automatic sealing gate valve
|
|
GB651474A
|
|
Improvements in and relating to valves
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