| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 1 | |
| #2 | Switzerland | 1 | |
| #3 | Germany | 1 | |
| #4 | Spain | 1 | |
| #5 | Finland | 1 | |
| #6 | France | 1 | |
| #7 | Japan | 1 | |
| #8 | Netherlands | 1 | |
| #9 | Norway | 1 | |
| #10 | Portugal | 1 | |
| #11 | Sweden | 1 | |
| #12 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Grinding or polishing devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ferroglio Enrico | 7 |
| #2 | Enriko Fueroogurio | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2554003A1 | BELT GRINDING MACHINE FOR GRINDING KNIVES, etc. |