| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 11 | |
| #2 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Mechanical elements | |
| #3 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Wheelchairs and sledges | |
| #2 | Cycles | |
| #3 | Clutches and brakes | |
| #4 | Cyclically operating valves | |
| #5 | Gearing |
| Publication | Filing date | Title |
|---|---|---|
| GB191324852A | Improvements in or relating to Change Speed Gears for Motor Cycles or other Vehicles. |