1 | SYLX | Sylvania Industrial Corp. | 7/1932-1/1946 | | NAKINA |
2 | SYLX | American Viscose Corp., Sylvania Division | 4/1947-7/1954; eliminated 1/1956 | | NAKINA |
3 | SYLX | Sylvania Industrial Corp. | Apr-38 | | NRHS |
4 | SYLX | American Viscose Corp., Sylvania Division | Jan-52 | | NRHS |
5 | SYLX | AMERICAN VISCOSE CORP., SYLVANIA DIVISION | | | PWRC |