| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Finland | 5 | |
| #2 | Germany | 2 | |
| #3 | Sweden | 2 | |
| #4 | France | 1 | |
| #5 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games | |
| #2 | Machines | |
| #3 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Domestic washing | |
| #2 | Finishing work on buildings | |
| #3 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Salo Heikki | 6 |
| #2 | Nurmi Pekka | 6 |
| #3 | Nurmi P | 2 |
| #4 | Jaervenreuna Juha | 1 |
| #5 | Salo | 1 |
| #6 | Finlandais Pekka Citoyen | 1 |
| #7 | Nurmi | 1 |
| #8 | Vaertoe Pertti | 1 |
| #9 | Keskinen Jorma | 1 |
| #10 | Finlandais Heikki Citoyen | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FI910500A0 | Styrfoerfarande i centraldammsugare. | |
| DE4031123A1 | Central unit for central vacuum cleaner - comprises body, vacuum and filter units, dust container, sepn. chamber, and suction and blow-out lines | |
| FI894102A0 | Wall inlet | |
| FI893732A0 | Central vacuum cleaner central unit | |
| FI893731A0 | Anordning vid centraldammsugares centralenhet. | |
| FI892559A0 | Central dammsugare och styrsystem foer denna. |