74495344
Feb 28, 1994
Jul 21, 1998
machines for the preparation of light concrete; machines for preparation of construction elements, namely floors, walls and ceilings; and machines for the preparation of precast construction elements from light concrete, namely floors, walls and ceilings
Machinerylight concrete, concrete with an addition of granulated foamed plastic, concrete with an addition of granulated foamed polystyrene; mortars; concrete precast construction elements, namely floors, walls and ceilings; light concrete precast construction elements, namely floors, walls and ceilings
Nonmetallic Building Materials