| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 6 | |
| #2 | Germany | 3 | |
| #3 | United Kingdom | 3 | |
| #4 | Austria | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Making screws | |
| #2 | Making gears or toothed racks |
| # | Name | Total Patents |
|---|---|---|
| #1 | Anderson Harold Napier | 6 |
| #2 | Harold Napier Anderson | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB149938A | Improvements in and relating to gear wheels and the like | |
| GB141752A | Improvements in or relating to the production of gear teeth |