| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 2 | |
| #2 | Denmark | 2 | |
| #3 | France | 2 | |
| #4 | United Kingdom | 2 | |
| #5 | Canada | 1 | |
| #6 | Germany | 1 | |
| #7 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Basic communication technologies | |
| #2 | Electrical machinery and energy | |
| #3 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Soldering, welding and flame cutting | |
| #2 | Modulation | |
| #3 | Electric discharge tubes | |
| #4 | Automatic control of oscillations | |
| #5 | Pulse technique |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nils Erik Dipl-Ing Backmark | 1 |
| #2 | Backmark Dipl-Ing Nils Erik | 1 |
| #3 | Backmark Nils E | 1 |
| #4 | Erik Backmark Nils | 1 |
| #5 | Nils Erik Backmark | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB820012A | Improvements in and relating to frequency control and switching on of high frequencygenerators | |
| GB799983A | Improvements in and relating to magnetrons | |
| CA609123A | Circuits for switching generators of high frequency energy |