| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 5 | |
| #2 | Denmark | 3 | |
| #3 | Ireland | 2 | |
| #4 | Spain | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Machine tools | |
| #3 | Electrical machinery and energy | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Analysing materials | |
| #2 | Magnets and transformers | |
| #3 | Rolling metal | |
| #4 | Unspecified technologies | |
| #5 | Sawing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Keppler W | 2 |
| #2 | Trautmann W | 1 |
| #3 | Foerster M | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1380887A | Magnetic powder testing of ferromagnetic bodies |