Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4312542 | Method of making a brush-beater for a vacuum cleaner | — | 1982-01-26 |
| 4311493 | Vacuum cleaner bag assembly | Joyce Thomas, Samuel E. Hohulin | 1982-01-19 |
| D261515 | Pressure spray carpet cleaner | Martin Wiese | 1981-10-27 |
| 4249281 | Self-propelled vacuum cleaner | Robert B. Meyer, Richard E. Kronmiller | 1981-02-10 |
| 4240812 | Vacuum cleaner bag assembly | Joyce Thomas, Samuel E. Hohulin | 1980-12-23 |
| 4209873 | Brush-beater for a vacuum cleaner and method for making the same | — | 1980-07-01 |
| D253891 | Casing for a vacuum cleaner | Martin Wiese | 1980-01-08 |