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GB1268765A
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Improvements in pipe joint
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GB1193090A
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Apparatus for Drilling Pipes.
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GB1263053A
|
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Quick release pipe drill
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GB1191851A
|
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Expandible Plug for Pipe Line Plugging apparatus
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GB1182261A
|
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Service Tee for Pipelines.
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GB1077383A
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Pipe line pluggers
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GB1060873A
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Pipe line plugger
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GB1064398A
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Pipe line plugger
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GB1045922A
|
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Improvements to pipe fittings
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GB978616A
|
|
Improvements in or relating to apparatus for drilling pipes
|
|
GB856156A
|
|
An improved under-pressure ferrule
|
|
GB740433A
|
|
An improved split collar for jointing or repairing pipes
|
|
GB743551A
|
|
An improved thread milling machine
|
|
GB745937A
|
|
An improved gripping tool
|
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GB732455A
|
|
Improvements in and relating to automatic pipe sawing machines
|
|
GB622045A
|
|
Improvements in or relating to hydraulic thrust boring machines
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GB619811A
|
|
Improvements in or relating to pipe vices
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|
GB618715A
|
|
Improvements in or relating to stoppers for gas mains
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|
GB617588A
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|
Improvements in or relating to clamps for pipes, conduits and the like
|
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GB589771A
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Improvements in or relating to sealing devices for gas and like mains
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