Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D307099 | Trencher tool | — | 1990-04-10 |
| D303341 | Tined mattock | — | 1989-09-12 |
| D303068 | Axe mattock | — | 1989-08-29 |
| D302933 | Two edge pick tool head | — | 1989-08-22 |
| D302381 | Combined chisel and pick tool head | — | 1989-07-25 |
| D300109 | Combination digging and trenching tool head | — | 1989-03-07 |
| D299412 | Axe | — | 1989-01-17 |
| D299210 | Combination crow bar/shovel tool | — | 1989-01-03 |
| D297603 | Jawed crusher for food items | — | 1988-09-13 |
| D265168 | Combination cutter and cultivator tool head | — | 1982-06-29 |
| D256322 | Earth digging and trenching tool head | — | 1980-08-12 |