Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4373980 | Method of manufacture of sound box of stringed instruments, particularly violins | Krzysztof Mroz | 1983-02-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4373980 | Method of manufacture of sound box of stringed instruments, particularly violins | Krzysztof Mroz | 1983-02-15 |