| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 11 | |
| #2 | France | 1 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics |
| # | Technology | |
|---|---|---|
| #1 | Cameras | |
| #2 | Processing photographic materials | |
| #3 | Photosensitive materials |
| Publication | Filing date | Title |
|---|---|---|
| GB245985A | An improved device for photographically copying inscriptions, drawings and the like on film bands automatically | |
| DE372162C | Blank film strips for machine film treatment | |
| DE372033C | Device for connecting motion picture strips on film processing machines | |
| DE379473C | Procedure for testing film splices | |
| DE372813C | Clamp for connecting two film strips for machine film treatment |