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GB1327813A
|
|
Facing of metal tubes
|
|
GB1273851A
|
|
Improvements in devices for sealing the ends of tubes
|
|
DE1939105A1
|
|
Lateral broadening of pipes
|
|
US3323551A
|
|
Hydrostatic tube testing equipment
|
|
DE1267879B
|
|
Closure that can be inserted into a bore of a pipe to be tested under pressure
|
|
GB1021725A
|
|
Improvements in hydrostatic tube testing equipment
|
|
DE1115540B
|
|
Locking device for plug-in couplings on pipes or hose lines
|
|
GB811384A
|
|
Improvements in or relating to pipe joints or pipe couplings
|
|
GB803585A
|
|
Improvements in fluid flow control valves of the screw down type
|
|
GB782594A
|
|
Improvements in non-return valves
|
|
GB791736A
|
|
Improvements in or relating to pipe couplings
|
|
US2745432A
|
|
Non-return valves
|
|
GB705063A
|
|
Improvements in non-return valves
|
|
GB693637A
|
|
Improvements in pipe couplings
|
|
DE846492C
|
|
Pipe connection, especially for pipes made of elastic materials with reinforcement
|
|
DE816042C
|
|
Pipe connection, especially for elastic pipes and hoses
|
|
US2591326A
|
|
Coupling for flexible pipes
|
|
US2552077A
|
|
Coupling for flexible pipes
|
|
GB631086A
|
|
Improvements in couplings for flexible pipes
|
|
GB638038A
|
|
Improvements in couplings for flexible pipes
|
