| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 5 | |
| #2 | United States | 4 | |
| #3 | United Kingdom | 3 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Machines | |
| #3 | Electrical machinery and energy | |
| #4 | Audio-visual technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nelson Carl S Jr | 2 |
| #2 | Nelson C | 2 |
| #3 | Cutler Stanley | 2 |
| #4 | Groves Sydney L | 1 |
| #5 | Bartok S | 1 |
| #6 | Stewart G | 1 |
| #7 | Northrop John H | 1 |
| #8 | Ryan John W | 1 |
| #9 | Klose G | 1 |
| #10 | Pearlman Marshall B | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3800058A | Light collector for optical organ | |
| US3769869A | Electronic musical instrument keying assembly providing a minimum of electrical noise | |
| CA950716A | Keyboard assembly for organ | |
| US3813498A | Musical recording with re-entry track | |
| US3878751A | Endless record audio signal generator and means for playing record |