| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 4 | |
| #2 | Australia | 2 | |
| #3 | WIPO (World Intellectual Property Organization) | 2 | |
| #4 | Finland | 1 | |
| #5 | Norway | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Machines | |
| #3 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Advertising | |
| #2 | Unspecified technologies | |
| #3 | Swimming pools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Engstroem Carl-Otto | 4 |
| #2 | Ahlberg E | 3 |
| #3 | Ahlberg Erik | 2 |
| #4 | Engstroem C-O | 1 |
| #5 | Engstrom Carl Otto | 1 |
| Publication | Filing date | Title |
|---|---|---|
| AU1591188A | Buildable device | |
| SE8701511D0 | Buildable arrangement for receiving essentially plane, preferably graphic products | |
| SE8601109D0 | Coupling piece for three-dimensional display system |