TROCON
PORTABLE STRUCTURAL ELEMENTS-NAMELY, HOUSES, HALLS, ELEMENTS OF HOUSES AND CELLS, PREFABRICATED IN ROUGH CONDITION AND INSTALLED IN SITU, MADE FROM PLASTIC MATERIALS AND/OR WITH THE USE OF PLASTIC MATERIALS, WOOD MATERIALS AND REINFORCING FIBERS; STRUCTURAL ELEMENTS TO BE USED ABOVE THE GROUND OR BELOW THE GROUND
Cancelled · January 25, 1974 · 73011873 ·