| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 36 | |
| #2 | United Kingdom | 3 | |
| #3 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Optics |
| # | Technology | |
|---|---|---|
| #1 | Cameras |
| # | Name | Total Patents |
|---|---|---|
| #1 | Baldeweg Max | 9 |
| #2 | Max Baldeweg | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US1913912A | Roll-film box camera | |
| GB374770A | Improvements in or relating to roll-film box cameras | |
| US1893122A | Roll film box camera | |
| GB374734A | Improvements in roll-film box cameras | |
| GB371183A | An improved paper strip or film spool |