| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 12 | |
| #2 | United Kingdom | 4 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Transport | |
| #3 | Control |
| # | Technology | |
|---|---|---|
| #1 | Measuring distances | |
| #2 | Aeroplanes | |
| #3 | Systems controlling non-electric variables |
| Publication | Filing date | Title |
|---|---|---|
| GB444827A | Automatic control of aircraft in curved flight | |
| GB435353A | Gyroscopic pendulum for crafts | |
| GB444207A | Apparatus for steering craft along a geographical great circle | |
| GB411620A | Improvements in or relating to automatic steering or stabilising devices, particularly for aircraft |