| Source | Work Type | Status | Applicant | Issued |
|---|---|---|---|---|
| BIS | — | ISSUED | L RISO AND SONS CO INC | 03/05/2009 |
| BIS | — | ISSUED | L. RISO & SONS CO., INC | 01/05/2001 |
| BIS | PL | ISSUED | BLAU MECHANICAL CORP. | 04/03/2000 |
| BIS | — | ISSUED | L. RISO & SONS CO., INC | 11/12/1999 |
| BIS | PL | ISSUED | BLAU MECHANICAL CORP | 09/08/1999 |
| BIS | — | ISSUED | L. RISO & SONS CO., INC | 07/20/1999 |