| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 5 | |
| #2 | United States | 5 | |
| #3 | Canada | 4 | |
| #4 | Germany | 4 | |
| #5 | France | 4 | |
| #6 | Italy | 4 | |
| #7 | Sweden | 4 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Television |
| # | Name | Total Patents |
|---|---|---|
| #1 | Long John H | 8 |
| #2 | Shaler David | 6 |
| #3 | Shaler D | 6 |
| #4 | Long J | 5 |
| #5 | Long J H | 4 |
| #6 | Smith J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3830967A | Apparatus for half tone marking electrostatic paper | |
| US3797024A | Stylus mounting for belt-type facsimile recorder | |
| US3797023A | Stylus assemblies | |
| US3787889A | Facsimile recorder with guided styli | |
| US3831178A | Electrostatic marking system with a load stabilized power supply |