Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6824472 | Collapsible infant swing | Michael Armbruster, John S. Canna, Robert Sonner | 2004-11-30 |
| 6811217 | Rocker device | Robert D. Piwko, Jr., John Rhein | 2004-11-02 |
| D492851 | Infant seat | — | 2004-07-13 |
| D491736 | Rocker device | Robert D. Piwko, Jr., John Rhein | 2004-06-22 |