| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 18 | |
| #2 | Austria | 2 | |
| #3 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Optics | |
| #3 | Furniture and games | |
| #4 | Audio-visual technology |
| Publication | Filing date | Title |
|---|---|---|
| GB176310A | Improvements in apparatus for producing imitation lightning for theatrical and like purposes | |
| GB163663A | Improvements in or relating to apparatus for representing moving clouds for entertainment purposes | |
| DE357080C | Method for achieving strange lighting effects on stages or the like. | |
| DE345474C | Signal box for stage regulators | |
| DE344864C | Coupling for stage regulators | |
| DE369955C | Ramp lighting | |
| DE369559C | Ramp lighting |