| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 9 | |
| #2 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Electrical machinery and energy | |
| #3 | Foods and drinks | |
| #4 | Mechanical elements | |
| #5 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Punching metal | |
| #2 | Lighting device details | |
| #3 | Office furniture | |
| #4 | Electrically-conductive connections | |
| #5 | Dough making machines | |
| #6 | Shafts |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dietrich Ernst | 2 |
| Publication | Filing date | Title |
|---|---|---|
| GB341746A | Improvements in perforating or stamping apparatus | |
| GB327010A | Improvements relating to machines for perforating, cutting or stamping metal or other sheets |