Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5420380 | Seismic switch for strong motion measurement | Philip E. Harben, Daniel W. Ewert | 1995-05-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5420380 | Seismic switch for strong motion measurement | Philip E. Harben, Daniel W. Ewert | 1995-05-30 |