Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10421215 | Mortar mixer paddle assembly for use with polyethylene drums and associated methods | — | 2019-09-24 |
| 7559687 | Mortar mixing drum assembly | — | 2009-07-14 |
| 7354191 | Mortar mixer and trunnion assembly | — | 2008-04-08 |
| 7128462 | Cylindrical mixing drum assembly including end wipers and enlarged chute | — | 2006-10-31 |
| 4698988 | Key for a lock of the plunger operated type | — | 1987-10-13 |
| 4543807 | Plunger operated lock | — | 1985-10-01 |
| 4492100 | Key for a lock of the plunger operated type | — | 1985-01-08 |
| 4475365 | Electrical box lock assembly | — | 1984-10-09 |
| 4426860 | Lock and key system of the plunger type | — | 1984-01-24 |
| 4394820 | Double action barrel lock | — | 1983-07-26 |
| 4331012 | Lockable meter retention ring | — | 1982-05-25 |
| 4262946 | Meter lock seal | — | 1981-04-21 |
| 4252006 | Utility lock and key | — | 1981-02-24 |