| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 4 | |
| #2 | Germany | 4 | |
| #3 | United States | 4 | |
| #4 | United Kingdom | 2 | |
| #5 | Japan | 2 | |
| #6 | Australia | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Civil engineering | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Lifting and pushing | |
| #2 | Unspecified technologies | |
| #3 | Dredging | |
| #4 | Cranes | |
| #5 | Street cleaning |
| # | Name | Total Patents |
|---|---|---|
| #1 | Olson Eugene David | 3 |
| #2 | Drott Edward Richard | 3 |
| #3 | Christenson John Carver | 3 |
| #4 | Christenson John C | 3 |
| #5 | Zunker Clark T | 2 |
| #6 | Snyder Roderick C | 2 |
| #7 | Edowaado Richiyaado Dorotsuto | 2 |
| #8 | Aiello Salvatore Frank | 2 |
| #9 | Rathke Ralph E | 2 |
| #10 | Jiyon Kaabuaa Kurisutenson | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US4251181A | Implement coupling apparatus for boom-type vehicle | |
| GB2014942A | Implement coupling apparatus | |
| DE2739537A1 | Pivoted lifting fork on telescopic jib - has drive rotating fork sideways about two separate pivoting axes | |
| JPS5332511A | Cargo handling vehicle | |
| CA1073409A | Truss boom for material handling truck | |
| US3836025A | Material-handling machine | |
| US3793752A | Convertible snow plow with auxiliary ground support | |
| CA943760A | Wing plow |