| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 10 | |
| #2 | United Kingdom | 6 | |
| #3 | France | 5 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Electric switches | |
| #2 | Emergency protective circuit arrangements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kesl Karel | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB644857A | Improved method of connecting and protecting appliances in domestic and industrial electrical installations | |
| DE645755C | Electrodynamic-thermal overcurrent relay | |
| DE656372C | Multipole overcurrent relay | |
| GB361625A | Improvements in or relating to contact devices for electrical apparatus | |
| GB340043A | Improvements in or relating to contact devices for electrical apparatus |