Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857119 | Case-Hardened plate armor and method of making | David A. Karst, William A. Potrafke, Harold E. Schuneman | 1989-08-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857119 | Case-Hardened plate armor and method of making | David A. Karst, William A. Potrafke, Harold E. Schuneman | 1989-08-15 |