| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 9 | |
| #2 | France | 3 | |
| #3 | Germany | 1 | |
| #4 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Transport | |
| #3 | Weapons |
| # | Technology | |
|---|---|---|
| #1 | Radio navigation | |
| #2 | Weapon sights | |
| #3 | Motor vehicles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Jiri Harlas | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE671718C | Method for determining the altitude and speed of a horizontally flying target using only one listening device | |
| GB409313A | Improvements in or relating to steering means for trailer vehicles |