| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 10 | |
| #2 | United Kingdom | 3 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Making forged metal products | |
| #2 | Nails |
| Publication | Filing date | Title |
|---|---|---|
| GB682454A | Improvements in or relating to methods of manufacturing nuts | |
| GB622558A | Internally threaded split rings | |
| GB502477A | Improvements in or relating to nuts and methods of manufacturing the same |