| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 6 | |
| #2 | Austria | 1 | |
| #3 | Belgium | 1 | |
| #4 | Switzerland | 1 | |
| #5 | United Kingdom | 1 | |
| #6 | Monaco | 1 | |
| #7 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Optics | |
| #3 | Control |
| # | Technology | |
|---|---|---|
| #1 | Special information storage | |
| #2 | Cameras | |
| #3 | Coin-freed |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bottani Angelo | 4 |
| #2 | Angelo Bottani | 3 |
| #3 | Bottani A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE1296511B | Automatic, coin operated playback device | |
| DE1547068A1 | Scanning or reading device for the optical soundtrack of a film | |
| DE1597400A1 | Projection apparatus | |
| DE1284837B | Magnetic coupling in a film device to limit the film pull | |
| DE1289733B | Portable film projection device | |
| GB986240A | Pickup device for optical sound track |