Improvements in, or relative to, the production of hollow concrete articles. (Machine-translation by Google Translate, not legally binding)
ES317942A3
A procedure, with its processing devices, for the manufacture of hollow concrete bodies. (Machine-translation by Google Translate, not legally binding)
GB999524A
An improved method and apparatus for the manufacture of hollow concrete bodies
GB1011036A
Improvements in or relating to the production of hollow concrete articles
GB954521A
Improvements in or relating to a method of, and apparatus for filling moulds with, for example, concrete
ES265137A3
Perfections in rooftops (Machine-translation by Google Translate, not legally binding)
ES265138A3
Perfections in rooftops (Machine-translation by Google Translate, not legally binding)
ES265139A3
Improvements in the construction of concrete travies for railroad (Machine-translation by Google Translate, not legally binding)
GB913090A
A method of moulding concrete sleepers with embedded hoops
GB942565A
Improvements in or relating to concrete piles
GB836882A
Improvements in the manufacture of concrete railway sleepers
IE21999L
Moulding hollow concrete bodies
GB800542A
A new or improved method for the production of hollow concrete bodies
GB785758A
A new or improved process for improving the electrical resistivity of concrete sleepers
