Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D268817 | Fill height gauge | Norman L. Watts, Robert J. Clark | 1983-05-03 |
| D268818 | Fill height gauge | Norman L. Watts, Robert J. Clark | 1983-05-03 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D268817 | Fill height gauge | Norman L. Watts, Robert J. Clark | 1983-05-03 |
| D268818 | Fill height gauge | Norman L. Watts, Robert J. Clark | 1983-05-03 |