| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 6 | |
| #2 | United Kingdom | 5 | |
| #3 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Mechanical elements | |
| #3 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Cameras | |
| #2 | Optical systems | |
| #3 | Goods for writing upon | |
| #4 | Frames |
| # | Name | Total Patents |
|---|---|---|
| #1 | Schmuck Peter | 3 |
| #2 | Kilfitt Heinz | 2 |
| #3 | Heinz Kilfitt | 1 |
| #4 | Piepenbrink Winfried | 1 |
| #5 | Sterflinger Ludwig | 1 |
| #6 | Fluecht Kurt | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB521699A | Improvements in or relating to draughting machines | |
| US2044434A | Photographic camera | |
| GB454454A | Improvements in or relating to photographic cameras | |
| GB410449A | Improvements in or relating to view finders for photographic cameras | |
| GB411347A | Improvements in or relating to photgraphic cameras | |
| GB410071A | Improvements in or relating to casings for roll-films |