| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 27 | |
| #2 | Germany | 5 | |
| #3 | United Kingdom | 2 | |
| #4 | Switzerland | 1 | |
| #5 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Civil engineering | |
| #3 | Electrical machinery and energy | |
| #4 | Machine tools | |
| #5 | Optics | |
| #6 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Edouard Guignard | 1 |
| #2 | Electriques Societe Parisienne | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE730240C | Suspension of multi-pole contact lines | |
| GB476546A | Power supply system for electrically driven vehicles | |
| DE678431C | Protective device against short-circuit-like faults in direct current railways | |
| DE679572C | Arrangement of the power supply and drainage forming contact line for electric vehicles | |
| DE664896C | Device for protecting direct current railway lines against short circuits | |
| US2001357A | Electric traction | |
| DE642151C | Arrangement of the overhead lines of electric railways that form the power supply and discharge |