| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 6 | |
| #2 | Canada | 5 | |
| #3 | Germany | 2 | |
| #4 | France | 1 | |
| #5 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Special information storage |
| # | Name | Total Patents |
|---|---|---|
| #1 | Cheeseboro Robert Gaines | 6 |
| #2 | Cheeseboro Robert G | 5 |
| #3 | Gaines Cheeseboro Robert | 2 |
| #4 | Cheeseboro R G | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA920959A | Record player | |
| US3658347A | Slot-loading portable record player | |
| FR1547096A | Slot-loading portable phonograph | |
| GB1216846A | Improvements in and relating to record players | |
| GB1216845A | Improvements in and relating to record players | |
| CA879232A | Portable record player | |
| CA899242A | Record player | |
| CA888873A | Portable record player | |
| CA881708A | Portable record player |