| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 11 | |
| #2 | United Kingdom | 1 | |
| #3 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Mechanical elements | |
| #3 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Making forged metal products | |
| #2 | Gearing | |
| #3 | Metal wire processing | |
| #4 | Forging | |
| #5 | Hinges for doors or windows |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wilhelm Nussbaum | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1970430A | Manufacture of nuts from balls | |
| GB346437A | Machine for pressing nuts from balls |