| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 15 | |
| #2 | Austria | 3 | |
| #3 | United Kingdom | 2 | |
| #4 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Gearing | |
| #2 | Clutches and brakes | |
| #3 | Mechanical control devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Beschraenkter Haftung Zahnradf | 15 |
| #2 | Soden-Fraunhofen Graf Alfred V | 4 |
| #3 | Hans Keitel | 2 |
| #4 | Alfred V Soden-Fraunhofen Dipl | 2 |
| #5 | Alfred Graf V Soden-Fraunhofen | 1 |
| #6 | Hans Keitel Dipl Ing | 1 |
| #7 | Steinrueck H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB181934A | Improvements in clutches | |
| GB145628A | Improvements in or relating to change speed gear mechanisms | |
| DE337933C | coupling |