| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 4 | |
| #2 | Germany | 3 | |
| #3 | Austria | 2 | |
| #4 | France | 2 | |
| #5 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Computer technology | |
| #2 | Optics | |
| #3 | Textiles and paper | |
| #4 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Data recognition and presentation | |
| #2 | Photomechanical semiconductor production | |
| #3 | Photographic composing devices | |
| #4 | Cameras | |
| #5 | Television | |
| #6 | Optical systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Karl Blattner | 4 |
| #2 | Roland Picard | 2 |
| #3 | Blattner Karl | 1 |
| #4 | Karl Blattner Dipl-Techn | 1 |
| #5 | Picard Roland | 1 |
| #6 | Blattner Karl Dipl-Techn | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE1941879A1 | Photo-optical drawing head for an automatic drawing machine | |
| DE1906148A1 | Photoelectric device for writing symbols and drawing small figures with high writing or drawing speed for an automatic drawing machine | |
| DE1786167A1 | Device for automatic regulation of the lighting of a perforated diaphragm arranged on the work carriage of an automatic, photoelectric drawing machine or the like, the hole of which is mapped onto a photographic layer for drawing the lines |