| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 15 | |
| #2 | United Kingdom | 4 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Control | |
| #3 | Transport | |
| #4 | Electrical machinery and energy | |
| #5 | Machines |
| Publication | Filing date | Title |
|---|---|---|
| GB371352A | Improvements in apparatus for indicating the speed of aircraft or for controlling the attitude of aircraft in accordance with variations in speed | |
| GB337295A | Improvements in or relating to apparatus for stabilising moving objects, particularly aeroplanes | |
| DE542196C | Gyrocompass | |
| GB273932A | Improvements in or relating to gyroscopes | |
| GB259199A | Improvements in or relating to gyroscopes |