| Date | Action |
| 05/31/2001 | Internal Correction Applied |
| 05/31/2001 | Internal Correction Applied |
| 08/13/1999 | License Converted |
| 02/24/1999 | License Renewed |
| 12/11/1997 | License Assigned (Full Assignment) |
| 07/08/1997 | License Modified |
| 10/30/1995 | Internal Correction Applied |
| 10/19/1995 | Internal Correction Applied |
| 03/09/1995 | Internal Correction Applied |
| 03/09/1995 | Internal Correction Applied |
| 04/14/1994 | License Modified |
| 02/25/1994 | License Modified |
| 04/20/1992 | License Modified |
| 03/12/1992 | License Modified |
| 01/23/1987 | License Modified |
| 12/20/1985 | License Modified |
| 12/11/1985 | License Modified |
| 10/12/1984 | License Modified |
| 09/26/1984 | License Modified |
| 09/21/1984 | License Issued |
| 09/13/1984 | License Modified |
| 09/12/1984 | License Modified |
| 12/14/1982 | License Issued |