Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D318874 | Housing for electrical equipment | Floyd J. Pushelberg, Stephen R. Ennis, Stanley W. Heldenbrand | 1991-08-06 |
| D285680 | Switching exchange for telephone and/or data communication | — | 1986-09-16 |