| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 1 | |
| #2 | Belgium | 1 | |
| #3 | Brazil | 1 | |
| #4 | Canada | 1 | |
| #5 | German Democratic Republic | 1 | |
| #6 | Germany | 1 | |
| #7 | Spain | 1 | |
| #8 | France | 1 | |
| #9 | United Kingdom | 1 | |
| #10 | Netherlands | 1 | |
| #11 | Sweden | 1 | |
| #12 | United States | 1 | |
| #13 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Laundering textiles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Colombo A | 4 |
| #2 | Colombo Ambrogio | 3 |
| #3 | Colombo Ambrogio Dr | 1 |
| Publication | Filing date | Title |
|---|---|---|
| NL7613603A | Steam iron. |