Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D387063 | Telephone key expansion unit | Stefan Hillenmayer, Ulrich Skrypalle, Wayne E. McKinnon, David E. Bryant, Erich C. Elkins +1 more | 1997-12-02 |
| D386759 | Telephone | Erich C. Elkins, Wayne E. McKinnon, David E. Bryant, Doug A. Erwin, William McRight | 1997-11-25 |