|
GB8609065D0
|
|
Tunnel lining segments
|
|
GB8609064D0
|
|
Tunnel lining segments
|
|
GB8604574D0
|
|
Improvements in or relating to the assembly and installation of pipes
|
|
GB8525379D0
|
|
Pipe joints
|
|
US4678211A
|
|
Joints formed with welded flange pipes
|
|
GB8515715D0
|
|
Provision of protective sleeves for pipes
|
|
GB8507489D0
|
|
Pipe joints & gaskets
|
|
IE850638L
|
|
Manufacturing a concrete pipe in a mould
|
|
GB8505315D0
|
|
Assembly & installation of underwater pipes
|
|
GB8505030D0
|
|
Joints formed with welded flange pipes
|
|
GB8426399D0
|
|
Concrete products
|
|
GB8420328D0
|
|
Joints
|
|
GB8419102D0
|
|
Pipe sleeves
|
|
GB8418489D0
|
|
Pipe couplings
|
|
GB8408853D0
|
|
Manhole cover
|
|
GB8406424D0
|
|
Producing concrete sewerage liners
|
|
GB8406425D0
|
|
Production of concrete products
|
|
GB8331691D0
|
|
Production of nodular or modified graphite cast iron
|
|
US4500352A
|
|
Production of cast iron
|
|
DE3217069A1
|
|
PIPE CONNECTION
|
