| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 37 | |
| #2 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Mechanical elements | |
| #3 | Transport | |
| #4 | Packaging and shipping | |
| #5 | Civil engineering | |
| #6 | Measurement | |
| #7 | Environmental technology | |
| #8 | Weapons |
| # | Name | Total Patents |
|---|---|---|
| #1 | Zuegel Wilhelm | 5 |
| Publication | Filing date | Title |
|---|---|---|
| DE641777C | Collapsible tripod that can be extended to eye level | |
| GB383288A | Improvements in combined range and view finders for photographic cameras |