| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | Denmark | 3 | |
| #3 | Norway | 3 | |
| #4 | Germany | 2 | |
| #5 | Sweden | 2 | |
| #6 | Switzerland | 1 | |
| #7 | Finland | 1 | |
| #8 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Shaping clay | |
| #2 | Construction of roads | |
| #3 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Persson Bengt | 12 |
| #2 | Persson B | 3 |
| #3 | Aberg L O | 2 |
| #4 | Perssons Bengt | 1 |
| #5 | Aberg Lars-Olof | 1 |
| #6 | Perssons Bertil | 1 |
| #7 | Persson Bertil | 1 |
| #8 | Aaberg Lars-Olof | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DK86480A | Concrete molding tools | |
| DK86580A | Method and apparatus for calibrating a concrete stand. | |
| DE3007149A1 | DEVICE ON MOLDING TOOLS | |
| DE2716913A1 | ROAD EDGE SUPPORT |