| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 4 | |
| #2 | EPO (European Patent Office) | 2 | |
| #3 | Brazil | 1 | |
| #4 | Switzerland | 1 | |
| #5 | France | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | Italy | 1 | |
| #8 | Norway | 1 | |
| #9 | USSR (Union of Socialist Soviet Republics) | 1 | |
| #10 | United States | 1 | |
| #11 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Machine tools | |
| #3 | Measurement | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Railway equipment | |
| #2 | Accessories for machine tools | |
| #3 | Measuring volume | |
| #4 | Lubricating |
| # | Name | Total Patents |
|---|---|---|
| #1 | Burger Dietrich | 7 |
| #2 | Wedlin P | 3 |
| #3 | Wedlin Per | 3 |
| #4 | Bohlin L | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0128884A2 | Power transmission device | |
| EP0050600A1 | Apparatus for lubrication of rails | |
| SE8006811L | Device for discharging a substance, preferably grease, in portions | |
| WO7900307A1 | Installation for portional lubrication of railway rails and the like |