Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5335740 | Drive system | John R. Lackner, Hans J. Matuschek | 1994-08-09 |
| 5316097 | Lawn mower | John R. Lackner, Hans J. Matuscheck, Daniel Kennedy | 1994-05-31 |
| 5285550 | Self-propelled vacuum cleaner having forward and reverse drive | John R. Lackner, Hans J. Matuschek | 1994-02-15 |