| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 7 | |
| #2 | Austria | 3 | |
| #3 | Germany | 3 | |
| #4 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Textiles and paper |
| # | Technology | |
|---|---|---|
| #1 | Photomechanical semiconductor production | |
| #2 | Printing processes | |
| #3 | Printing machines | |
| #4 | Reproduction of printing surfaces |
| # | Name | Total Patents |
|---|---|---|
| #1 | Orell Fuessli Art Institut | 7 |
| Publication | Filing date | Title |
|---|---|---|
| DE473856C | Process for the faithful transfer of the printed image from gravure printing plates to stone or metal | |
| DE457202C | Cross grid and with this carried out photographic recording process | |
| DE439376C | Photographic recording process for the production of disturbance screens for banknote printing |