Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4478298 | Drill bit stud and method of manufacture | Charles F. Huff, J. W. Randolph Miller | 1984-10-23 |
| 4345124 | Acceleration switch | Joseph P. Abbin, Howard F. Devaney | 1982-08-17 |