| 1 | SSLX | Semet Solvay Co. | 8/1920-4/1947 | | NAKINA |
| 2 | SSLX | Semet Solvay Division Allied Chemical and Dye Corp. | 1/1950-10/1957; eliminated 7/1958 | | NAKINA |
| 3 | SSLX | Semet Solvay Division, Allied Chemical Corp. | added 7/1958; 4/1961; eliminated 7/1964 | | NAKINA |
| 4 | SSLX | Semet Solvay Co. | Apr-38 | | NRHS |
| 5 | SSLX | Semet Solvay Division Allied Chemical and Dye Corp. | 1/52-10/57; eliminated 7/58 | | NRHS |
| 6 | SSLX | Semet Solvay Division, Allied Chemical Corp. | added 7/58; 4/61; eliminated 7/64 | | NRHS |
| 7 | SSLX | SEMET SOLVAY DIV., ALLIED CHEMICAL CORP. | | | PWRC |