71524036
Jun 12, 1947
May 31, 1949
ARTIFICIAL FIBERS,SUCH AS CELLULOSE FIBER, PROTEIN FIBER (E.G. MILK WOOL), CUT ARTIFICIAL SILK RAYON STAPLE FIBER, NYLON FIBER, ARTIFICIAL STRAW AND ARTIFICIAL HORSEHAIR ALL EXCEPT SYNTHETIC FIBERS OF ONE OR MORE, SINGLE OR MIXED, CELLULOSE ESTERS
Chemicals