Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4393018 | Method for making a concrete block | William L. Harbaugh | 1983-07-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4393018 | Method for making a concrete block | William L. Harbaugh | 1983-07-12 |