Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D328166 | Handle extension for a vacuum cleaner | John R. Lackner | 1992-07-21 |
| D320491 | Vacuum cleaner | John R. Lackner | 1991-10-01 |
| 4692754 | Rotation indicating device | Merardo P. Edejer, John J. Jailor, Michael J. Jens | 1987-09-08 |
| 4514199 | Vacuum cleaner dirt box | Herman Shie, Thomas E. Baird | 1985-04-30 |