| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 8 | |
| #2 | France | 4 | |
| #3 | Denmark | 3 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Measurement | |
| #3 | Machines | |
| #4 | Electrical machinery and energy | |
| #5 | Packaging and shipping | |
| #6 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Dredging | |
| #2 | Unspecified technologies | |
| #3 | Measuring distances | |
| #4 | Installation of electric cables | |
| #5 | Dry-docking of vessels | |
| #6 | Unspecified technologies | |
| #7 | Geophysics | |
| #8 | Cranes |
| Publication | Filing date | Title |
|---|---|---|
| GB528568A | Improvements in or relating to electromagnetic apparatus for determining location of concealed bodies | |
| GB507353A | Improvements in or relating to methods of and apparatus for determining the topography of the bed of the ocean or other body of water |