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GB9117790D0
|
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Valve handle safety lock
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Leak testing device for a valve in a pipeline
|
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Method and apparatus for controlling oil well blowout
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Improvements in or relating to valve apparatus
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Improvements in or relating to joint testing apparatus
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Improvements in or relating to mechanical clamps
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Flanged pipeline connections
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Leak sealing
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Valve testing system
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GB8400880D0
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Improvements in sealing pipe and like flanged joints
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NL8301472A
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Sealant for sealing pipe joints - comprises curable elastomer esp. polyurethane and pulverulent filler e.g. rubber crumb
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NL8301473A
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Resealing leaking bell and spigot joint - by injecting sealant into joint using seal maintaining tooling
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Sealing pipe
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Sealing pipe joints
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US4428223A
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Apparatus for periodically testing the operation of safety valves
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GB2062812A
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Valve testing
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AU5618480A
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Testing safety valves
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CA1138222A
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Apparatus for periodically testing the operation of safety valves
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EP0028661A1
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Apparatus for periodically testing the operation of safety valves, and safety valve
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GB2050518A
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Injection guns
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