| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 9 | |
| #2 | United Kingdom | 4 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Electrical machinery and energy | |
| #3 | Telecommunications | |
| #4 | Optics | |
| #5 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Television | |
| #2 | Electric discharge tubes | |
| #3 | Electrography | |
| #4 | Secret communication | |
| #5 | Measuring light |
| Publication | Filing date | Title |
|---|---|---|
| GB484706A | Improvements in or relating to television transmitting and receiving apparatus | |
| GB356760A | Improvements in the electrical reception and transmission of pictures | |
| GB277761A | Improvements in or relating to the electrical transmission of pictures | |
| GB188030A | Improved process for taking photographs and apparatus therefor |