| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 7 | |
| #2 | France | 5 | |
| #3 | Canada | 3 | |
| #4 | Denmark | 2 | |
| #5 | United Kingdom | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Machine tools | |
| #3 | Mechanical elements | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Wheelchairs and sledges | |
| #2 | Soldering, welding and flame cutting | |
| #3 | Cycles | |
| #4 | Gearing | |
| #5 | Unspecified technologies | |
| #6 | Punching metal | |
| #7 | Clutches and brakes |
| # | Name | Total Patents |
|---|---|---|
| #1 | A Nouvelle Zesar S | 7 |
| #2 | Lauper Werner | 2 |
| #3 | Werner Lauper | 1 |
| #4 | Murbach Otto | 1 |
| #5 | Berger Charles | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2366912A | Speed change gear | |
| GB556492A | Method for manufacturing toothed wheels for chain-driven bicycles and wheel manufactured according to this method | |
| CA413087A | Speed gear for bicycles, etc. | |
| CA413088A | Speed gear for bicycles, etc. | |
| CA418317A | Speed gear |