Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821367 | Ultrasonic tool and method for securing a covering to a frame | Douglas B. MacDonald, Daniel V. Constantino, Robert T. Ruthven, Daniel M. Ursul, Larry B. Hanify | 2004-11-23 |
| 6684929 | Panel system | Douglas B. MacDonald, Steven E. Sanders, Mark T. Slager, Roy W. Fink, Steven J. Throndset +3 more | 2004-02-03 |