| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 4 | |
| #2 | United Kingdom | 3 | |
| #3 | Austria | 2 | |
| #4 | Belgium | 2 |
| # | Industry | |
|---|---|---|
| #1 | Basic communication technologies | |
| #2 | Audio-visual technology | |
| #3 | Electrical machinery and energy | |
| #4 | Telecommunications |
| # | Technology | |
|---|---|---|
| #1 | Amplification control | |
| #2 | Television | |
| #3 | Amplifiers | |
| #4 | Electrically-conductive connections | |
| #5 | Demodulation | |
| #6 | Resonators | |
| #7 | Broadcast communication | |
| #8 | Installation of electric cables | |
| #9 | Transmission |
| # | Name | Total Patents |
|---|---|---|
| #1 | Holmes Harold Carter | 2 |
| #2 | Clements F I | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1377394A | Broadband frequency converters | |
| GB1049631A | Improvements in or relating to electric coaxial cable connectors | |
| GB969522A | Improvements in or relating to automatic gain control systems |