| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 16 | |
| #2 | Germany | 4 | |
| #3 | United Kingdom | 4 | |
| #4 | Austria | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Clutches and brakes | |
| #2 | Gearing | |
| #3 | Containers for goods storage |
| Publication | Filing date | Title |
|---|---|---|
| GB317072A | Improvements in dises for friction clutches and brakes | |
| GB287523A | Improvements in disc friction clutches | |
| DE499375C | Friction clutch | |
| GB272566A | Improvements in or relating to friction discs | |
| GB263767A | Improvements in or relating to friction discs |