| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 10 | |
| #2 | United States | 6 | |
| #3 | France | 5 | |
| #4 | Norway | 2 | |
| #5 | Austria | 1 | |
| #6 | Canada | 1 | |
| #7 | Switzerland | 1 | |
| #8 | Spain | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Transport | |
| #3 | Agriculture | |
| #4 | Mechanical elements | |
| #5 | Furniture and games | |
| #6 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Street cleaning | |
| #2 | Motor vehicles | |
| #3 | Animal catching | |
| #4 | Harvesting | |
| #5 | Dredging | |
| #6 | Vehicle wheels | |
| #7 | Domestic washing | |
| #8 | Brushes | |
| #9 | Mechanical control devices | |
| #10 | Construction of roads |
| # | Name | Total Patents |
|---|---|---|
| #1 | Arufuretsudo Shiyumitsuto | 7 |
| #2 | Hirt Walter | 5 |
| #3 | Schmidt Jr Alfred | 1 |
| #4 | Ian Yaamesu Dounkan | 1 |
| #5 | Teheodoru Heringu | 1 |
| #6 | Schmidt Alfred Jr | 1 |
| #7 | Schmidt Alfred | 1 |
| #8 | Hans-Dieter Schmidt | 1 |
| #9 | Schmidt Alfred Ing | 1 |
| #10 | Schmidt A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JPS6073909A | Snow plough having spring flap | |
| US3337890A | Street sweeper | |
| CA840681A | Vehicle attachment and method of attaching the latter to a vehicle |