Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4667509 | Digital tester for measuring the hardness of the material | Edward L. Tobolski, Joseph J. Cieplak, Elliot R. Lang, Ralph Hershberger | 1987-05-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4667509 | Digital tester for measuring the hardness of the material | Edward L. Tobolski, Joseph J. Cieplak, Elliot R. Lang, Ralph Hershberger | 1987-05-26 |