Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6063992 | Practice drumming pad | — | 2000-05-16 |
| 4261536 | Device for controlling the operating cycles of models | Hans Melcher | 1981-04-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6063992 | Practice drumming pad | — | 2000-05-16 |
| 4261536 | Device for controlling the operating cycles of models | Hans Melcher | 1981-04-14 |