| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 2 | |
| #2 | France | 2 | |
| #3 | United Kingdom | 2 | |
| #4 | Canada | 1 | |
| #5 | Germany | 1 | |
| #6 | Denmark | 1 | |
| #7 | Finland | 1 | |
| #8 | Sweden | 1 | |
| #9 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Control | |
| #3 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Teaching materials | |
| #2 | Casings and printed circuits | |
| #3 | Electrically-conductive connections | |
| #4 | Dynamo-electric machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Greger Georg | 3 |
| #2 | Georg Greger | 2 |
| #3 | Greger G | 1 |
| #4 | Franz Greger Georg | 1 |
| #5 | Greger F | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FR94943E | Electronic construction box. | |
| GB1217885A | Electrical constructional kits | |
| GB1082036A | Electronic building set | |
| CA789775A | Electronic building set |