Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6758459 | Weed puller | Doris A. Heikkinen | 2004-07-06 |
| 4243206 | Apparatus for removing weeds | Verner E. Heikkinen | 1981-01-06 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6758459 | Weed puller | Doris A. Heikkinen | 2004-07-06 |
| 4243206 | Apparatus for removing weeds | Verner E. Heikkinen | 1981-01-06 |