Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4773633 | Helical spring and process for producing it | Bernhard Hinz | 1988-09-27 |
| 4665869 | Valve spring retainer and process for its production | Bernhard Hinz | 1987-05-19 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4773633 | Helical spring and process for producing it | Bernhard Hinz | 1988-09-27 |
| 4665869 | Valve spring retainer and process for its production | Bernhard Hinz | 1987-05-19 |