| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 5 | |
| #2 | France | 4 | |
| #3 | Germany | 2 | |
| #4 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Control |
| # | Technology | |
|---|---|---|
| #1 | Advertising | |
| #2 | Teaching materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kuna Joseph | 6 |
| #2 | Spitz Emanuel | 4 |
| #3 | Spitz Emmanuel | 1 |
| #4 | Longrigg Benjamin Hugh Hemsley | 1 |
| #5 | Spitz Emanu El | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1007699A | Indicating devices for graphs, charts, notice boards and the like | |
| GB955017A | Improvements in indicating devices | |
| GB958595A | Improvements in indicating devices | |
| GB973694A | Indicating devices such as graphs,charts and notice boards | |
| GB921717A | Improvements in graph-, chart- or notice-boards | |
| CA675902A | Indicating devices |