Apparatus for applying a coating of plastic material to cylindrical articles (Machine-translation by Google Translate, not legally binding)
ES252435A3
A procedure and apparatus for the manufacture of cylindrical or similar articles, hollows, of concrete or analogue material (Machine-translation by Google Translate, not legally binding)
ES251775A3
Device for support and rotation of concrete pipes (Machine-translation by Google Translate, not legally binding)
ES251780A3
Mechanism for the gripping, transportation and rotation of a pipe or other hollow cylinder (Machine-translation by Google Translate, not legally binding)
ES251777A3
Elements for the anchoring of the end of wires, subjected to voltage, rolled to pipes of concrete (Machine-translation by Google Translate, not legally binding)
ES251776A3
Procedure to induce a predetermined tension in a wire (Machine-translation by Google Translate, not legally binding)
ES251778A3
Procedure and apparatus perfected for the manufacture of cylindrical wire meshes soldier (Machine-translation by Google Translate, not legally binding)
ES251779A3
Wiring device, submitted to tension, to pipes of concrete and procedimeinto to roll up the same (Machine-translation by Google Translate, not legally binding)
US2709845A
Method of applying pressure to the surface of newly formed concrete or like cementitious products
US2720469A
Process for producing fluid-tight concrete
GB717946A
Process for surface treatment of concrete to make it highly resistant to the passage of fluids through it
GB717945A
Improved method of applying pressure to the surface of newly formed concrete or like cementitious products
