Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5377514 | Escutcheon and method of making a fire-resistant safe | Richard C. Robbins, Mary P. DiGiambattista | 1995-01-03 |
| 5295447 | Hollow reinforcements for fire-resistant safes | Richard C. Robbins, Mary P. DiGiambattista | 1994-03-22 |
| 5009090 | Combination lock assembly | Patrick J. Beattie, Richard J. Sylvester | 1991-04-23 |
| 4977766 | Universal lock mount | Patrick J. Beattie, Richard J. Sylvester | 1990-12-18 |