| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 6 | |
| #2 | Germany | 4 | |
| #3 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Mechanical elements | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Gearing | |
| #2 | Making gears or toothed racks | |
| #3 | Unspecified technologies | |
| #4 | Turning |
| # | Name | Total Patents |
|---|---|---|
| #1 | Albert Forster | 2 |
| Publication | Filing date | Title |
|---|---|---|
| GB635961A | Improvements in or relating to the cutting of curved gear teeth | |
| GB455853A | Improvements in or relating to the cutting of curved gear teeth | |
| GB421098A | Improvements in or relating to spur toothed wheels | |
| US2098864A | Spur gear | |
| GB400581A | Toothed wheel and method and machine for the production thereof | |
| US1950844A | Change speed gear | |
| GB384845A | Change speed gear | |
| GB382170A | Change speed gear |