Noiseless manhole adapter

Noiseless manhole frame and cover

Non-combustible reinforced cementitious lightweight panels...

Offshore harbour tank and installation

Offshore marine structure embodying anchor pile means

Offshore structure in frigid environment

Oil storage system

Oil/gas wel surface multi vertical flange and tubular...

Open end cutting shoe

Operation of a non-circular compaction roller, and a...

Panel connectors for reinforced concrete diaphragm walls

Parabolic cover for manhole

Paroi etanche continue de toute longueur et sans joint...

Partial-seepage drainage pipe with mating sleeve

Partially prefabricated modular foundation system

Particulate material retaining bags for mine backfill,...

Patching and strengthening system for cracks in foundation...

Penetration of power installed anchor

Percolation test apparatus

Percussion hammer