Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4280201 | Variable gap roll along switching | Douglas B. Waits | 1981-07-21 |
| 4218767 | Transmission line seismic communications system | Wesley L. Joosten, John W. Miller, Otice E. Brown | 1980-08-19 |