Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4295351 | Self-tapping stainless steel screw and method for producing same | Ramon A. Berg, Henry A. Sygnator | 1981-10-20 |
| 4233880 | Stainless steel drill screw | Ramon A. Berg, George A. Friedland | 1980-11-18 |