| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 3 | |
| #2 | Canada | 2 | |
| #3 | Finland | 2 | |
| #4 | Sweden | 2 | |
| #5 | United States | 2 | |
| #6 | Germany | 1 | |
| #7 | Denmark | 1 | |
| #8 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Motor vehicles | |
| #2 | Crop agriculture | |
| #3 | Vehicle connections |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ragnar Henningsson | 2 |
| #2 | Wulff Sigurd | 2 |
| #3 | Cassler Lennart | 2 |
| #4 | Henningsson Ragnar | 2 |
| #5 | Sigurd Wulff | 2 |
| #6 | Lennart Cassler | 2 |
| #7 | Cassler L | 1 |
| #8 | Cederlund Gosta Roland | 1 |
| #9 | Wulff S | 1 |
| #10 | Andre G | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3533642A | Vehicles | |
| GB930910A | Improvements in or relating to a device for attaching trailed vehicles or implementsto a tractor | |
| FR1241041A | Compensating coupling device between tractor and trailer | |
| US3062561A | Device for attaching trailed vehicles or implements to a tractor | |
| CA852076A | Vehicles | |
| CA661790A | Device for attaching trailed vehicles or implements to a tractor |