Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D283599 | Material hardness tester or similar article | Ernest L. Biddle | 1986-04-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D283599 | Material hardness tester or similar article | Ernest L. Biddle | 1986-04-29 |