| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Spain | 8 | |
| #2 | Switzerland | 4 | |
| #3 | Austria | 2 | |
| #4 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics |
| # | Technology | |
|---|---|---|
| #1 | Cameras |
| # | Name | Total Patents |
|---|---|---|
| #1 | Parolini Cesare | 5 |
| #2 | Perron Gustave | 3 |
| #3 | Cesare Parolini | 2 |
| #4 | Gustave Perron | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ES115591A1 | Perfections introduced in the manufacture of cartons for obtaining flexible discs for talking machines. | |
| ES104983A1 | A device allowing light projections in broad daylight or in a bright room. | |
| GB191505398A | Improvements in Screens for Fixed or Motion Picture Apparatus. |