| Source | Work Type | Status | Applicant | Issued |
|---|---|---|---|---|
| BIS | PL | ISSUED | BLAU MECHNL CORP | 05/08/2001 |
| BIS | — | ISSUED | L. RISO & SONS CO., INC | 10/26/2000 |
| BIS | PL | ISSUED | BLAU MECHNL CORP | 03/01/2000 |
| BIS | — | ISSUED | L. RISO & SONS CO., INC | 12/15/1999 |
| BIS | EQ | RE-ISSUED | L. RISO & SONS CO., INC | 12/15/1999 |