| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 9 | |
| #2 | United Kingdom | 2 | |
| #3 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Electrical machinery and energy | |
| #3 | Environmental technology | |
| #4 | Measurement | |
| #5 | Mechanical elements |
| Publication | Filing date | Title |
|---|---|---|
| DE611850C | Switching arrangement for achieving shock-free switching processes in electrically operated vehicles equipped with several compound motors | |
| GB359444A | Electric regeneration equipment for tramways | |
| GB302356A | Automatic device for testing the insulation of an electric network causing the automatic re-engagement of a circuit-breaker |