| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 4 | |
| #2 | Sweden | 4 | |
| #3 | Germany | 3 | |
| #4 | Denmark | 2 | |
| #5 | France | 2 | |
| #6 | United States | 2 | |
| #7 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Consumer goods | |
| #4 | Furniture and games | |
| #5 | Transport |
| # | Name | Total Patents |
|---|---|---|
| #1 | Billgren Karl Lennart | 9 |
| #2 | Billgren K | 2 |
| #3 | Billgren K L | 2 |
| #4 | Hansson H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1543972A | Method of producing a decorative surface on a concrete body | |
| US4044516A | Air terminal building | |
| GB1429320A | Method of producing a concrete body having a decorative surface | |
| GB1286205A | A hanging roof structure | |
| US3667173A | Hanging roof structure | |
| GB697444A | Improvements in folding bedsteads |