| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 12 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Basic communication technologies | |
| #3 | Audio-visual technology | |
| #4 | Telecommunications | |
| #5 | Optics | |
| #6 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Electric discharge tubes | |
| #2 | Pulse technique | |
| #3 | Amplification control | |
| #4 | Cameras | |
| #5 | Television | |
| #6 | Mechanical control devices | |
| #7 | Tuning resonant circuits | |
| #8 | Magnets and transformers | |
| #9 | Antennas |