| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 4 | |
| #2 | Switzerland | 2 | |
| #3 | Denmark | 2 | |
| #4 | Germany | 1 | |
| #5 | Spain | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Civil engineering | |
| #3 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Locks | |
| #2 | Unspecified technologies | |
| #3 | Office furniture | |
| #4 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Vogelsang Fritz | 11 |
| Publication | Filing date | Title |
|---|---|---|
| US1286456A | Safety-lock. | |
| GB191501140A | Improvements in or relating to Safety Locks. |