Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6616505 | Model train sound board interface | Louis H. Niederlander | 2003-09-09 |
| 6186510 | Mechanical contact bearing seal | — | 2001-02-13 |
| 5820129 | Mechanical split double seals | — | 1998-10-13 |
| 5615893 | Split face mechanical sealing rings and their use | — | 1997-04-01 |