| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 6 | |
| #2 | France | 5 | |
| #3 | Switzerland | 2 | |
| #4 | United Kingdom | 2 | |
| #5 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Cameras | |
| #2 | Mechanically-driven clocks |
| # | Name | Total Patents |
|---|---|---|
| #1 | Henri Thiebaud | 2 |
| #2 | Friedrich Huebener | 2 |
| #3 | Kuster Edwin | 2 |
| #4 | Knus Jean A | 1 |
| #5 | Edwin Kuster | 1 |
| #6 | Oschwald Alfred | 1 |
| #7 | Danner Alois Paul | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FR1396109A | Reflector projection device consisting of a concave mirror | |
| FR1344145A | equipment for illuminating and photographing or filming an object surface having reflective parts | |
| US3036495A | Photographic copy position apparatus | |
| GB856067A | Improvements in or relating to optical viewing apparatus | |
| FR1161513A | Viewer with projection device |