| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Spain | 6 | |
| #2 | United States | 3 | |
| #3 | Switzerland | 2 | |
| #4 | Canada | 1 | |
| #5 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Guiding railway traffic |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ducousso Theophile | 7 |
| #2 | Rodary Ferdinand | 5 |
| Publication | Filing date | Title |
|---|---|---|
| CA86839A | Electrical railway signal | |
| US694847A | Electrical operation and control of railway-switches. | |
| US801655A | Means for operating and controlling railway-points. | |
| GB189820202A | Improvements in Electrical Apparatus for Operating Railway Points and Signals. | |
| US704177A | Electrical apparatus for operating railway switches and signals. |