Foundation piles and pile-planks (sheet-piles) both moulded in the ground; prefabricated piles, pile planks and construction elements, especially made of concrete, reinforced concrete or reinforced cement; railway sleepers made principally of concrete; foundations; construction elements for tunnels and galleries; pipe made principally of concrete, and joints for such pipes

Machines and apparatus for the construction of foundation piles and pile-planks, moulded in the ground or made from prefabricated elements; machines and apparatus for driving piles and tubes into the ground; machines and apparatus for withdrawing piles and tubes from the ground; excarating and earth boring and drilling apparatus and machines; machines and apparatus for preparing, forming and laying building foundations; appliances for foundations; expansible mandrels for driving tubes into the ground; installations for lowering the ground-water level; machines and apparatus for rendering impermeable or for consolidating the sub-soil; machines and apparatus for the construction of tunnels and galleries; machines and apparatus for vibrating cement or concrete