1 | DRCX | Martin Marietta Corp. | added 1/1979; 1/1980; eliminated 7/1986 | | NAKINA |
2 | DRCX | Martin-Marietta Cement, Division of Martin-Marietta Corp. | added 10/1972; 1/1975; eliminated 1/1979 | | NAKINA |
3 | DRCX | Dragon Cement Co., Division of Martin Marietta Corp. | added 7/1969; 4/1970; eliminated 10/1972 | | NAKINA |
4 | DRCX | Dragon Cement Co., Division of Martin Marietta Corp. | added 7/69; 4/70; eliminated 10/72 | | NRHS |
5 | DRCX | Martin-Marietta Cement, Division of Martin-Marietta Corp. | added 10/72; 1/75; eliminated 1/79 | | NRHS |
6 | DRCX | Martin Marietta Corp. | added 1/79; 1/80; eliminated 7/86 | | NRHS |
7 | DRCX | MARTIN MARIETTA CORP. [DENVER RAILWAY CAR COMPANY; DRAGON CEMENT CO.] | | | PWRC |
8 | DRCX | Denver Railway Car Company (Martin Marietta Corporation) | | | RSRV |