| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | General building constructions | |
| #2 | Shaping clay | |
| #3 | Transport or storage devices | |
| #4 | Locks | |
| #5 | Structural elements | |
| #6 | Doors and windows |
| # | Name | Total Patents |
|---|---|---|
| #1 | Fernaeus Sven Evert | 9 |
| #2 | Jonsson Erik Anselm | 3 |
| #3 | Fernaeus S E | 2 |
| #4 | Jonsson E A | 2 |
| Publication | Filing date | Title |
|---|---|---|
| FR2470212A1 | CONSTRUCTION ELEMENT COMPRISING MORTARLESS ASSEMBLY MEANS AND CRAMPON FOR SUCH ASSEMBLY | |
| US4101255A | Apparatus for manufacturing wave-shape building blocks | |
| US4040226A | Building block with wave-shaped upper and lower support surfaces |