| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 2 | |
| #2 | France | 2 | |
| #3 | United Kingdom | 2 | |
| #4 | Austria | 1 | |
| #5 | Belgium | 1 | |
| #6 | Canada | 1 | |
| #7 | Switzerland | 1 | |
| #8 | Italy | 1 | |
| #9 | Norway | 1 | |
| #10 | Sweden | 1 | |
| #11 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Measuring distances | |
| #2 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Howe E W | 2 |
| #2 | Howe E | 2 |
| #3 | Howe Edwin W | 2 |
| #4 | W Howe Edwin | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA997595A | Gyrocompasses | |
| DE2305663A1 | GYRO COMPASS | |
| GB1425092A | Gyroscope devices | |
| US3815428A | Gyrocompasses | |
| GB1315432A | Gyroscopic apparatus |