| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Doors and windows |
| # | Name | Total Patents |
|---|---|---|
| #1 | Olofsson Charles Roland | 1 |
| #2 | Falck H | 1 |
| #3 | Persson Karl Bertil | 1 |
| #4 | Andersson J | 1 |
| #5 | Falck Bror M H | 1 |
| #6 | Persson K | 1 |
| #7 | Olofsson R | 1 |
| #8 | Falck B | 1 |
| #9 | Sandow Carl Wilgot Hilmer | 1 |
| #10 | Bertil Persson Karl | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1018692A | Improvements in or relating to venetian blinds | |
| GB1006420A | Device for use on venetian blinds | |
| CA705196A | Fairlead for the operating cords of venetian blinds |