| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 6 | |
| #2 | Canada | 4 | |
| #3 | Switzerland | 3 | |
| #4 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Packaging and shipping | |
| #3 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Motor vehicles | |
| #2 | Load transportation vehicles | |
| #3 | Dredging | |
| #4 | Cranes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hacker Oskar | 11 |
| #2 | Oskar Hacker | 3 |
| Publication | Filing date | Title |
|---|---|---|
| CA540417A | Saddle tractors | |
| CA572615A | Chassis for self-laying track vehicles | |
| CA511956A | Drive for widely varying number of revolutions and output withdrawal | |
| CA573413A | Tracklaying tractor with exchangeable working implements |