ROCHESTER & PITTSBURGH COAL CO of PITTSBURGH, PA filed a DEF 14A with the SEC on 1997-04-18. Industry: Silver Ores.
| Filed | Form |
|---|---|
| 1998-09-04 | DEF 14A |
| 1998-08-13 | PRER14A |
| 1998-06-25 | PREM14A |
| 1997-04-18 | DEF 14A |
| 1996-04-12 | DEF 14A |
| 1995-03-29 | DEF 14A |
| 1994-03-31 | DEF 14A |