1 | NCYX | National Cylinder Gas, Division of Chemetron Corp. | added 1/1960; 4/1961-1/1975; eliminated 4/1978 | | NAKINA |
2 | NCYX | National Cylinder Gas Co. | added 7/1954; 7/1954-10/1957; eliminated 10/1959 | | NAKINA |
3 | NCYX | National Cylinder Gas Co. | 10/57; eliminated 10/59 | | NRHS |
4 | NCYX | National Cylinder Gas, Division of Chemetron Corp. | added 1/60; 4/61-1/75; eliminated 4/78 | | NRHS |
5 | NCYX | NATIONAL CYLINDER GAS, DIV. CHEMETRON CORP. | | | PWRC |
6 | NCYX | NATIONAL CYLINDER GAS | | | SCAC3 |