Showing 1–2 of 2 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Josef Zwyssig | Cendres+Metaux Sa | 1 |
| 1 | M. Walter Graub | — | 1 |
2 patents · 2 inventors
Ranked #87,345 of 111,555 cities Top 80%
Showing 1–2 of 2 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Josef Zwyssig | Cendres+Metaux Sa | 1 |
| 1 | M. Walter Graub | — | 1 |