| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Shaping clay | |
| #2 | Structural elements | |
| #3 | Doors and windows |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wall Harlin J | 5 |
| #2 | Wall H J | 3 |
| #3 | Haarin Jiei Uooru | 1 |
| #4 | Wall H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1572758A | Frame structure for casting building panels | |
| US4141532A | Frame structure for casting concrete | |
| US3996989A | Insulating frame and glazing for doors and windows |