| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 4 | |
| #2 | France | 3 | |
| #3 | Switzerland | 2 | |
| #4 | Canada | 1 | |
| #5 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Basic communication technologies | |
| #2 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Automatic control of oscillations | |
| #2 | Generation of oscillations | |
| #3 | Radio navigation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Jechart Ernst | 6 |
| Publication | Filing date | Title |
|---|---|---|
| US3903481A | Gas cell atomic frequency standard having selected alkali vapor isotope ratios | |
| DE2331546A1 | Aircraft navigation and ranging system - has re-tuning device with comparator and trimmer for frequency transmitter | |
| CA978595A | Atomic frequency standard |