71524625
Jun 21, 1947
May 31, 1949
RESINOUS PLASTIC MATERIALS IN THE FORM OF [ RODS, TUBES, SLABS, SLATS, ] PANELS, [ STRIPS AND FRAMES, AND THERMOPLASTIC MATERIALS IN THE FORM OF SHEETS, STRIPS AND FILMS ] ALL INTENDED FOR USE IN THE INDUSTRIAL ARTS AND FOR FURTHER MANUFACTURE
Chemicals