Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4926691 | Apparatus and method for testing wooden poles | Douglas E. Franklin, Maurice W. Murphy | 1990-05-22 |
| 4766323 | Method and apparatus for determining the distance of an object | Douglas E. Franklin, Gordon I. Frank, Paul Toom | 1988-08-23 |