| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 12 | |
| #2 | United Kingdom | 4 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Guiding railway traffic | |
| #2 | Installation of electric cables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ducousso Theophile | 12 |
| Publication | Filing date | Title |
|---|---|---|
| GB185318A | Means for disconnecting railway points from the operating motor mechanism | |
| GB171441A | A driving electro mechanism for operating rail track apparatus | |
| GB171440A | Improvements in railway and like route lever panels | |
| GB148396A | Improvements in railway and like route lever panels |