Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4490921 | Drafting tool | John H. Pigman | 1985-01-01 |
| 4448229 | Planing jig | John H. Pigman | 1984-05-15 |
| 4418901 | Vise system | John H. Pigman | 1983-12-06 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4490921 | Drafting tool | John H. Pigman | 1985-01-01 |
| 4448229 | Planing jig | John H. Pigman | 1984-05-15 |
| 4418901 | Vise system | John H. Pigman | 1983-12-06 |