| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Engines, pumps and turbines | |
| #3 | Materials and metallurgy | |
| #4 | Machines | |
| #5 | Control | |
| #6 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Dredging | |
| #2 | Non-positive-displacement pumps | |
| #3 | Iron and steel production | |
| #4 | Unspecified technologies | |
| #5 | Cranes | |
| #6 | Systems controlling non-electric variables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Sandberg Nils Arne | 13 |
| #2 | Sandberg Nils A | 3 |
| #3 | Sandberg Arne | 1 |
| #4 | Sandberg N | 1 |
| #5 | Nirusu Arune Sandoberuku | 1 |
| #6 | Sandberg N A | 1 |
| #7 | Nirusu Aane Sandoberugu | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FI780929A | Reglersystem vid en anlaeggning med roerlig suganordning foer sugning av suspenderbart material | |
| DE2649698A1 | METHOD AND DEVICE FOR CONTROLLING A HANGING DEVICE WHEN THE POSITION OF THE DEVICE CHANGES IN RELATION TO A HANGING POINT | |
| US4037335A | Method of controlling a mobile suction device for sucking suspendible material from the bottom of a liquid body, and an apparatus for carrying out the method |