| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Transport | |
| #3 | Telecommunications | |
| #4 | Engines, pumps and turbines | |
| #5 | Control | |
| #6 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Electric switches | |
| #2 | Spark gaps and corona devices | |
| #3 | Vehicle signalling and lighting | |
| #4 | Transmission | |
| #5 | Ignition for internal-combustion engines | |
| #6 | Alarm systems | |
| #7 | Gearing | |
| #8 | Vehicle parts | |
| #9 | Wheelchairs and sledges |
| # | Name | Total Patents |
|---|---|---|
| #1 | Schmidt Henri | 7 |
| #2 | Broeck Antoine Van Den | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ES262285A1 | Improvements introduced in intermittent switches, especially for signaling lights (Machine-translation by Google Translate, not legally binding) |