| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Machines for making railways | |
| #2 | Structural elements | |
| #3 | Shaping clay | |
| #4 | Unspecified technologies | |
| #5 | Cables and insulators | |
| #6 | Springs | |
| #7 | Earth drilling | |
| #8 | Nails | |
| #9 | General building constructions | |
| #10 | Hydraulic engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Sonneville Roger | 7 |
| #2 | Roger Sonneville | 3 |
| #3 | Marie Gaston Nerincx Christian | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FR2542022A1 | Anchoring bolt for fixing a rail on a transit | |
| ES270360A1 | Improvements in travies for railroad (Machine-translation by Google Translate, not legally binding) | |
| ES244987A1 | Lane fixing device (Machine-translation by Google Translate, not legally binding) | |
| CA660772A | Insulated rail supporting and fastening device | |
| CA878932A | Rail support device |