| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 5 | |
| #2 | Germany | 3 | |
| #3 | Switzerland | 2 | |
| #4 | Spain | 1 | |
| #5 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Cameras | |
| #2 | Optical systems | |
| #3 | Advertising |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ed Liesegang | 2 |
| Publication | Filing date | Title |
|---|---|---|
| FR1151401A | Image projector with slide magazine | |
| FR1153687A | Image projector with magazine | |
| FR721100A | projection screen | |
| FR654234A | Image projector for incident light and for refracted light | |
| GB185395A | Improvements in or relating to optical projection apparatus | |
| FR551921A | Diascopic and episcopic projection process | |
| DE697C | Photographic camera in the form of a suitcase |