Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D387235 | Ergonomic seat cushion | — | 1997-12-09 |
| D387414 | Spray gun | Joseph W. Kieffer, Andrew L. Von Duyke | 1997-12-09 |
| 5655714 | Pivotable syphon tube | Joseph W. Kieffer | 1997-08-12 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D387235 | Ergonomic seat cushion | — | 1997-12-09 |
| D387414 | Spray gun | Joseph W. Kieffer, Andrew L. Von Duyke | 1997-12-09 |
| 5655714 | Pivotable syphon tube | Joseph W. Kieffer | 1997-08-12 |