Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6655640 | Control, sound, and operating system for model trains | Michael Paul Wolf, David L. Krebiehl, Forrest S. Seitz | 2003-12-02 |
| 6619594 | Control, sound, and operating system for model trains | Michael Paul Wolf, David L. Krebiehl, Forrest S. Seitz, Scott B. Long | 2003-09-16 |