| 8262034 |
Control, sound, and operating system for model trains |
David L. Krebiehl, Forrest S. Seitz, Stanley K. Sasaki, Scott B. Long |
2012-09-11 |
| 7694834 |
Electro-mechanical coupler for use with model trains |
David L. Krebiehl, Scott B. Long |
2010-04-13 |
| 7210656 |
Control, sound, and operating system for model trains |
David L. Krebiehl, Forrest S. Seitz, Stanley K. Sasaki |
2007-05-01 |
| 6655640 |
Control, sound, and operating system for model trains |
David L. Krebiehl, Forrest S. Seitz, Stanley K. Sasaki |
2003-12-02 |
| 6619594 |
Control, sound, and operating system for model trains |
David L. Krebiehl, Forrest S. Seitz, Stanley K. Sasaki, Scott B. Long |
2003-09-16 |
| 6604641 |
Low-power electrically operated coupler |
David L. Krebiehl, Scott B. Long |
2003-08-12 |
| 6457681 |
Control, sound, and operating system for model trains |
David L. Krebiehl, Forrest S. Seitz, Stanley K. Sasaki, Scott B. Long |
2002-10-01 |