| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Packaging and shipping | |
| #3 | Chemical engineering |
| # | Technology | |
|---|---|---|
| #1 | Scaffolding | |
| #2 | Hydraulic engineering | |
| #3 | Cranes | |
| #4 | Lifting and pushing | |
| #5 | Foundations and excavations | |
| #6 | Mixing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Vilhelm Svensson Sven-Erik | 3 |
| #2 | Gustaf Johansson Rolf | 3 |
| #3 | Gustav Johansson Rolf | 3 |
| #4 | Johansson R | 2 |
| #5 | Svensson Sven-Erik Vilhelm | 1 |
| #6 | Blankenburg Carl-Heinrich | 1 |
| #7 | Gustafsson Eric Reinhold | 1 |
| #8 | Dahl Gunnar Arnfinn | 1 |
| #9 | Johansson Rolf Gustaf | 1 |
| #10 | Jozef Thoma Ernoe | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE1212706B | Pressurized climbing device for sliding formwork | |
| GB620620A | Agitating arrangements in mixing-machines for concrete of the type provided with a mixing vessel open at the top and provided with a plane bottom |