| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 22 | |
| #2 | United Kingdom | 5 | |
| #3 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Sawing | |
| #2 | Turning | |
| #3 | Accessories for machine tools | |
| #4 | Milling | |
| #5 | Grinding or polishing devices | |
| #6 | Punching metal | |
| #7 | Workshop equipment |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hunger Ludwig | 11 |
| #2 | Richter Karl | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB969519A | Improvements in or relating to containers for tools | |
| GB869206A | Valve refacing apparatus | |
| DE1104295B | Device for processing valve seats | |
| GB320236A | Adjustable reamer |