| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 4 | |
| #2 | United States | 3 | |
| #3 | Germany | 2 | |
| #4 | Sweden | 2 | |
| #5 | Australia | 1 | |
| #6 | Belgium | 1 | |
| #7 | Canada | 1 | |
| #8 | France | 1 | |
| #9 | Italy | 1 | |
| #10 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Control |
| # | Technology | |
|---|---|---|
| #1 | Teaching materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ward John R | 4 |
| #2 | Mckay Ian Guy | 3 |
| #3 | Ward J R | 2 |
| #4 | Eiloart Timothy March Beaupre | 2 |
| #5 | Hemington G | 1 |
| #6 | Horabin Ivan S | 1 |
| #7 | Edge Gordon Malcolm | 1 |
| #8 | Eiloart T | 1 |
| #9 | White Norman Roy Pierce | 1 |
| #10 | Fowley Jr Daniel J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3894346A | Electronic keyboard trainer | |
| CA983261A | Electronic keyboard trainer | |
| GB1285713A | An electrical arrangement for use in a teaching machine | |
| GB1237074A | Apparatus for use in learning a skill | |
| GB1170446A | Apparatus for Learning a Skill for example Typing, Reading, Spelling and the like, employing a Keyboard |