| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 7 | |
| #2 | Spain | 3 | |
| #3 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Grinding or polishing devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wenger Co | 7 |
| #2 | Uebersax Jean | 1 |
| #3 | Medgyes Charles | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1224191A | Machine for polishing metallic bodies. | |
| US1063478A | Process for polishing silver utensils. |