| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 13 | |
| #2 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games | |
| #2 | Electrical machinery and energy | |
| #3 | Civil engineering | |
| #4 | Optics |
| # | Technology | |
|---|---|---|
| #1 | Theater devices | |
| #2 | Non-portable lighting devices | |
| #3 | Swimming pools | |
| #4 | Cameras |
| Publication | Filing date | Title |
|---|---|---|
| DE407153C | Device for creating the stage image based on the principle of colored shadows | |
| GB178413A | Improvements in means for representing optically scenery and other objects on stagesor the like |