| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 8 | |
| #2 | Denmark | 2 | |
| #3 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Electric switches | |
| #2 | Electrically-conductive connections |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kirchberger Georg | 5 |
| #2 | Denz Bruno | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB705531A | Dust-proof electric switch | |
| GB687821A | Improvements in or relating to lever-operated electrical switches |