| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 4 | |
| #2 | United States | 3 | |
| #3 | Germany | 2 | |
| #4 | Italy | 2 | |
| #5 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Control | |
| #3 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Electric switches | |
| #2 | Money sorting | |
| #3 | Games |
| # | Name | Total Patents |
|---|---|---|
| #1 | Martelli M | 5 |
| Publication | Filing date | Title |
|---|---|---|
| GB2017511A | Five-suit dice | |
| IT941586B | EQUIPMENT VERIFYING VALUE CARDS AND IN SPECIES OF BANKNOTES WITH PHOTOELECTRIC OPERATION | |
| GB1329150A | Magnetic reed contact units | |
| GB1330357A | Magnetic reed contact units |